Vulnerabilities > CVE-2020-7039 - Out-of-bounds Write vulnerability in multiple products
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
LOW Integrity impact
LOW Availability impact
LOW Summary
tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 | |
| Application | 1 | |
| OS | 2 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0845-1.NASL description This update for qemu fixes the following issues : CVE-2020-7039: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1161066). CVE-2019-15034: Fixed a buffer overflow in hw/display/bochs-display.c due to improper PCI config space allocation (bsc#1166379). CVE-2020-1711: Fixed an out of bounds heap buffer access iscsi_co_block_status() routine which could have allowed a remote denial of service or arbitrary code with privileges of the QEMU process on the host (bsc#1166240). CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() routine while emulating the identification protocol and copying message data to a socket buffer (bsc#1123156). CVE-2020-8608: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1163018). CVE-2019-20382: Fixed a memory leak in the VNC display driver which could have led to exhaustion of the host memory leading to a potential Denial of service (bsc#1165776). Fixed live migration errors (bsc#1154790, bsc#1156794, bsc#1156642). Fixed an issue where migrating VMs on KVM gets missing features:ospke error (bsc#1162729). Fixed an issue where booting up a guest system with mdev passthrough device as installation device was failing (bsc#1158880). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-07 modified 2020-04-02 plugin id 135169 published 2020-04-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135169 title SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2020:0845-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(135169); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/21"); script_cve_id("CVE-2019-15034", "CVE-2019-20382", "CVE-2019-6778", "CVE-2020-1711", "CVE-2020-7039", "CVE-2020-8608"); script_name(english:"SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for qemu fixes the following issues : CVE-2020-7039: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1161066). CVE-2019-15034: Fixed a buffer overflow in hw/display/bochs-display.c due to improper PCI config space allocation (bsc#1166379). CVE-2020-1711: Fixed an out of bounds heap buffer access iscsi_co_block_status() routine which could have allowed a remote denial of service or arbitrary code with privileges of the QEMU process on the host (bsc#1166240). CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() routine while emulating the identification protocol and copying message data to a socket buffer (bsc#1123156). CVE-2020-8608: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1163018). CVE-2019-20382: Fixed a memory leak in the VNC display driver which could have led to exhaustion of the host memory leading to a potential Denial of service (bsc#1165776). Fixed live migration errors (bsc#1154790, bsc#1156794, bsc#1156642). Fixed an issue where migrating VMs on KVM gets missing features:ospke error (bsc#1162729). Fixed an issue where booting up a guest system with mdev passthrough device as installation device was failing (bsc#1158880). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1123156" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1154790" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1156642" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1156794" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1158880" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1161066" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1162161" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1162729" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1163018" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1165776" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1166240" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1166379" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-15034/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-20382/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-6778/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1711/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-7039/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-8608/" ); # https://www.suse.com/support/update/announcement/2020/suse-su-20200845-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?0287d340" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Server 12-SP5:zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-845=1" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8608"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-oss"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-oss-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-sdl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-sdl-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-sdl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-sdl-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/21"); script_set_attribute(attribute:"patch_publication_date", value:"2020/04/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/02"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-block-rbd-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"qemu-x86-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", cpu:"s390x", reference:"qemu-s390-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", cpu:"s390x", reference:"qemu-s390-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-alsa-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-alsa-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-oss-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-oss-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-pa-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-pa-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-sdl-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-audio-sdl-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-curl-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-curl-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-iscsi-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-iscsi-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-ssh-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-block-ssh-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-debugsource-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-guest-agent-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-guest-agent-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-lang-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-tools-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-tools-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-curses-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-curses-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-gtk-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-gtk-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-sdl-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-ui-sdl-debuginfo-3.1.1.1-3.9.1")) flag++; if (rpm_check(release:"SLES12", sp:"5", reference:"qemu-kvm-3.1.1.1-3.9.1")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu"); }NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202005-02.NASL description The remote host is affected by the vulnerability described in GLSA-202005-02 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : Please review the referenced CVE identifiers for details. Workaround : There is no known workaround at this time. last seen 2020-05-16 modified 2020-05-13 plugin id 136539 published 2020-05-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136539 title GLSA-202005-02 : QEMU: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 202005-02. # # The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(136539); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/21"); script_cve_id("CVE-2020-11102", "CVE-2020-1711", "CVE-2020-7039"); script_xref(name:"GLSA", value:"202005-02"); script_name(english:"GLSA-202005-02 : QEMU: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-202005-02 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : Please review the referenced CVE identifiers for details. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/202005-02" ); script_set_attribute( attribute:"solution", value: "All QEMU users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/qemu-4.2.0-r5'" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-7039"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:qemu"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/16"); script_set_attribute(attribute:"patch_publication_date", value:"2020/05/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"app-emulation/qemu", unaffected:make_list("ge 4.2.0-r5"), vulnerable:make_list("lt 4.2.0-r5"))) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get()); else security_warning(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "QEMU"); }NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2020-0010.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - kvm-Fix-heap-overflow-in-ip_reass-on-big-packet-input.pa tch [bz#1734747] - kvm-Using-ip_deq-after-m_free-might-read-pointers-from-a .patch - kvm-tcp_emu-Fix-oob-access.patch [bz#1791558] - kvm-slirp-use-correct-size-while-emulating-IRC-commands. patch [bz#1791558] - kvm-slirp-use-correct-size-while-emulating-commands.patc h [bz#1791558] - Resolves: bz#1734747 (CVE-2019-14378 qemu-kvm: QEMU: slirp: heap buffer overflow during packet reassembly [rhel-6.10.z]) - Resolves: bz#1749731 (CVE-2019-15890 qemu-kvm: QEMU: Slirp: use-after-free during packet reassembly [rhel-6]) - Resolves: bz#1791558 (CVE-2020-7039 qemu-kvm: QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu [rhel-6.10.z]) last seen 2020-03-19 modified 2020-03-16 plugin id 134611 published 2020-03-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134611 title OracleVM 3.4 : qemu-kvm (OVMSA-2020-0010) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1344.NASL description The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1344 advisory. - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-21 modified 2020-04-07 plugin id 135253 published 2020-04-07 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135253 title RHEL 8 : virt:rhel (RHSA-2020:1344) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-2076.NASL description An issue has been found in slirp, a SLIP/PPP emulator using a dial up shell account. Due to bad memory handling in slirp a heap-based buffer overflow or other out-of-bounds access could happen, which can lead to a DoS or potential execute arbitrary code. For Debian 8 last seen 2020-06-01 modified 2020-06-02 plugin id 133229 published 2020-01-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133229 title Debian DLA-2076-1 : slirp security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1430.NASL description According to the versions of the qemu-kvm packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.(CVE-2020-8608) - This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.(CVE-2019-11135) - tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.(CVE-2020-7039) - ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.(CVE-2019-14378) - Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.(CVE-2015-5239) - Buffer overflow in the send_control_msg function in hw/char/virtio-serial-bus.c in QEMU before 2.4.0 allows guest users to cause a denial of service (QEMU process crash) via a crafted virtio control message.(CVE-2015-5745) - The ne2000_receive function in hw/net/ne2000.c in QEMU before 2.4.0.1 allows attackers to cause a denial of service (infinite loop and instance crash) or possibly execute arbitrary code via vectors related to receiving packets.(CVE-2015-5278) - The process_tx_desc function in hw/net/e1000.c in QEMU before 2.4.0.1 does not properly process transmit descriptor data when sending a network packet, which allows attackers to cause a denial of service (infinite loop and guest crash) via unspecified vectors.(CVE-2015-6815) - Heap-based buffer overflow in the ne2000_receive function in hw/net/ne2000.c in QEMU before 2.4.0.1 allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via vectors related to receiving packets.(CVE-2015-5279) - Heap-based buffer overflow in the .receive callback of xlnx.xps-ethernetlite in QEMU (aka Quick Emulator) allows attackers to execute arbitrary code on the QEMU host via a large ethlite packet.(CVE-2016-7161) - hw/net/vmxnet3.c in QEMU 2.0.0-rc0, 1.7.1, and earlier allows local guest users to cause a denial of service or possibly execute arbitrary code via vectors related to (1) RX or (2) TX queue numbers or (3) interrupt indices. NOTE: some of these details are obtained from third party information.(CVE-2013-4544) - The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files before the program.(CVE-2015-4037) - hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.(CVE-2015-6855) - hw/virtio/virtio.c in the Virtual Network Device (virtio-net) support in QEMU, when big or mergeable receive buffers are not supported, allows remote attackers to cause a denial of service (guest network consumption) via a flood of jumbo frames on the (1) tuntap or (2) macvtap interface.(CVE-2015-7295) - The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.(CVE-2015-7549) - The eepro100 emulator in QEMU qemu-kvm blank allows local guest users to cause a denial of service (application crash and infinite loop) via vectors involving the command block list.(CVE-2015-8345) - Qemu, when built with VNC display driver support, allows remote attackers to cause a denial of service (arithmetic exception and application crash) via crafted SetPixelFormat messages from a client.(CVE-2015-8504) - The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular isochronous transfer descriptor (iTD) list.(CVE-2015-8558) - Memory leak in net/vmxnet3.c in QEMU allows remote attackers to cause a denial of service (memory consumption).(CVE-2015-8567) - Memory leak in QEMU, when built with a VMWARE VMXNET3 paravirtual NIC emulator support, allows local guest users to cause a denial of service (host memory consumption) by trying to activate the vmxnet3 device repeatedly.(CVE-2015-8568) - Stack-based buffer overflow in the megasas_ctrl_get_info function in QEMU, when built with SCSI MegaRAID SAS HBA emulation support, allows local guest users to cause a denial of service (QEMU instance crash) via a crafted SCSI controller CTRL_GET_INFO command.(CVE-2015-8613) - Use-after-free vulnerability in hw/ide/ahci.c in QEMU, when built with IDE AHCI Emulation support, allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via an invalid AHCI Native Command Queuing (NCQ) AIO command.(CVE-2016-1568) - QEMU (aka Quick Emulator) built with the USB EHCI emulation support is vulnerable to a null pointer dereference flaw. It could occur when an application attempts to write to EHCI capabilities registers. A privileged user inside quest could use this flaw to crash the QEMU process instance resulting in DoS.(CVE-2016-2198) - The ohci_bus_start function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.(CVE-2016-2391) - The is_rndis function in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 does not properly validate USB configuration descriptor objects, which allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving a remote NDIS control message packet.(CVE-2016-2392) - Multiple integer overflows in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 allow local guest OS administrators to cause a denial of service (QEMU process crash) or obtain sensitive host memory information via a remote NDIS control message packet that is mishandled in the (1) rndis_query_response, (2) rndis_set_response, or (3) usb_net_handle_dataout function.(CVE-2016-2538) - The ne2000_receive function in the NE2000 NIC emulation support (hw/net/ne2000.c) in QEMU before 2.5.1 allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via crafted values for the PSTART and PSTOP registers, involving ring buffer control.(CVE-2016-2841) - QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.(CVE-2016-2858) - Buffer overflow in the stellaris_enet_receive function in hw/net/stellaris_enet.c in QEMU, when the Stellaris ethernet controller is configured to accept large packets, allows remote attackers to cause a denial of service (QEMU crash) via a large packet.(CVE-2016-4001) - Buffer overflow in the mipsnet_receive function in hw/net/mipsnet.c in QEMU, when the guest NIC is configured to accept large packets, allows remote attackers to cause a denial of service (memory corruption and QEMU crash) or possibly execute arbitrary code via a packet larger than 1514 bytes.(CVE-2016-4002) - The ehci_advance_state function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular split isochronous transfer descriptor (siTD) list, a related issue to CVE-2015-8558.(CVE-2016-4037) - The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a VGA command.(CVE-2016-4453) - The vmsvga_fifo_read_raw function in hw/display/vmware_vga.c in QEMU allows local guest OS administrators to obtain sensitive host memory information or cause a denial of service (QEMU process crash) by changing FIFO registers and issuing a VGA command, which triggers an out-of-bounds read.(CVE-2016-4454) - The net_tx_pkt_do_sw_fragmentation function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the current fragment length.(CVE-2016-6834) - The vmxnet_tx_pkt_parse_headers function in hw/net/vmxnet_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (buffer over-read) by leveraging failure to check IP header length.(CVE-2016-6835) - The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.(CVE-2016-6836) - Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU process crash) via the maximum fragmentation count, which triggers an unchecked multiplication and NULL pointer dereference.(CVE-2016-6888) - Directory traversal vulnerability in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to access host files outside the export path via a .. (dot dot) in an unspecified string.(CVE-2016-7116) - The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.(CVE-2016-7421) - The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.(CVE-2016-7908) - The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) receive or (2) transmit descriptor ring length to 0.(CVE-2016-7909) - The xhci_ring_fetch function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit the number of link Transfer Request Blocks (TRB) to process.(CVE-2016-8576) - The serial_update_parameters function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving a value of divider greater than baud base.(CVE-2016-8669) - The intel_hda_xfer function in hw/audio/intel-hda.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via an entry with the same value for buffer length and pointer position.(CVE-2016-8909) - The rtl8139_cplus_transmit function in hw/net/rtl8139.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) by leveraging failure to limit the ring descriptor count.(CVE-2016-8910) - Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.(CVE-2016-9102) - The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.(CVE-2016-9103) - Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.(CVE-2016-9104) - Memory leak in the v9fs_link function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) via vectors involving a reference to the source fid object.(CVE-2016-9105) - Memory leak in the v9fs_write function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) by leveraging failure to free an IO vector.(CVE-2016-9106) - Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a last seen 2020-05-06 modified 2020-04-15 plugin id 135559 published 2020-04-15 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135559 title EulerOS 2.0 SP3 : qemu-kvm (EulerOS-SA-2020-1430) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1296.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1296 advisory. - QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711) - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-02 plugin id 135176 published 2020-04-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135176 title RHEL 7 : qemu-kvm-rhev (RHSA-2020:1296) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1351.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1351 advisory. - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) - QEMU: Slirp: potential OOB access due to unsafe snprintf() usages (CVE-2020-8608) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-07 plugin id 135245 published 2020-04-07 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135245 title RHEL 7 : qemu-kvm (RHSA-2020:1351) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1150.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1150 advisory. - QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711) - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-01 plugin id 135051 published 2020-04-01 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135051 title RHEL 7 : qemu-kvm-ma (RHSA-2020:1150) NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-468.NASL description This update for qemu fixes the following issues : - CVE-2020-7039: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1161066). - CVE-2019-15034: Fixed a buffer overflow in hw/display/bochs-display.c due to improper PCI config space allocation (bsc#1166379). - CVE-2020-1711: Fixed an out of bounds heap buffer access iscsi_co_block_status() routine which could have allowed a remote denial of service or arbitrary code with privileges of the QEMU process on the host (bsc#1166240). - CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() routine while emulating the identification protocol and copying message data to a socket buffer (bsc#1123156). - CVE-2020-8608: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1163018). - CVE-2019-20382: Fixed a memory leak in the VNC display driver which could have led to exhaustion of the host memory leading to a potential Denial of service (bsc#1165776). - Fixed a live migration error (bsc#1154790). - Fixed an issue where migrating VMs on KVM gets missing features:ospke error (bsc#1162729). This update was imported from the SUSE:SLE-15-SP1:Update update project. last seen 2020-04-12 modified 2020-04-07 plugin id 135265 published 2020-04-07 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135265 title openSUSE Security Update : qemu (openSUSE-2020-468) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4616.NASL description Two security issues have been found in the SLiRP networking implementation of QEMU, a fast processor emulator, which could result in the execution of arbitrary code or denial of service. last seen 2020-06-01 modified 2020-06-02 plugin id 133419 published 2020-02-03 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133419 title Debian DSA-4616-1 : qemu - security update NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-0775.NASL description An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es) : * QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378) * QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) * QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-17 modified 2020-03-11 plugin id 134386 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134386 title CentOS 6 : qemu-kvm (CESA-2020:0775) NASL family Scientific Linux Local Security Checks NASL id SL_20200310_QEMU_KVM_ON_SL6_X.NASL description Security Fix(es) : - QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378) - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) - QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890) last seen 2020-03-18 modified 2020-03-11 plugin id 134395 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134395 title Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64 (20200310) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1300.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1300 advisory. - QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711) - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) - QEMU: Slirp: potential OOB access due to unsafe snprintf() usages (CVE-2020-8608) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-02 plugin id 135173 published 2020-04-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135173 title RHEL 7 : qemu-kvm-rhev (RHSA-2020:1300) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-0775.NASL description From Red Hat Security Advisory 2020:0775 : An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es) : * QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378) * QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) * QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-03-11 plugin id 134388 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134388 title Oracle Linux 6 : qemu-kvm (ELSA-2020-0775) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0348.NASL description An update for the container-tools:rhel8 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc. Security Fix(es) : * QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section. last seen 2020-05-21 modified 2020-02-05 plugin id 133481 published 2020-02-05 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133481 title RHEL 8 : container-tools:rhel8 (RHSA-2020:0348) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-2090.NASL description tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanag es memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds acces s which can lead to a DoS or potential execute arbitrary code. For Debian 8 last seen 2020-06-01 modified 2020-06-02 plugin id 133366 published 2020-01-31 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133366 title Debian DLA-2090-1 : qemu security update NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-1358.NASL description Description of changes: qemu-kvm [2.12.0-88.0.1.el8_1_0.3] - Added bug30251155-remove-upstream-reference [Orabug: 30251155] [2.12.0-88.el8_1_0.3] - kvm-tcp_emu-Fix-oob-access.patch [bz#1791565] - kvm-slirp-use-correct-size-while-emulating-IRC-commands.patch [bz#1791565] - kvm-slirp-use-correct-size-while-emulating-commands.patch [bz#1791565] - kvm-iscsi-Avoid-potential-for-get_status-overflow.patch [bz#1794500] - kvm-iscsi-Cap-block-count-from-GET-LBA-STATUS-CVE-2020-1.patch [bz#1794500] - Resolves: bz#1791565   (CVE-2020-7039 virt:rhel/qemu-kvm: QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() [rhel-8.1.0.z]) - Resolves: bz#1794500   (CVE-2020-1711 qemu-kvm: QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [rhel-8.1.0.z]) libvirt [4.5.0-35.3.0.1] - added librbd1 as dependency (Keshav Sharma) [4.5.0-35.3.el8] - qemu: Translate features in virQEMUCapsGetCPUFeatures (rhbz#1809510) last seen 2020-06-06 modified 2020-04-16 plugin id 135664 published 2020-04-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135664 title Oracle Linux 8 : virt:ol (ELSA-2020-1358) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0775.NASL description An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es) : * QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378) * QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) * QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-03-11 plugin id 134393 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134393 title RHEL 6 : qemu-kvm (RHSA-2020:0775) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-1116.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1116 advisory. - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-04-10 plugin id 135340 published 2020-04-10 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135340 title CentOS 7 : qemu-kvm (CESA-2020:1116) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1116.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1116 advisory. - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-03-31 plugin id 135036 published 2020-03-31 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135036 title RHEL 7 : qemu-kvm (RHSA-2020:1116) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1352.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1352 advisory. - QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711) - QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039) - QEMU: Slirp: potential OOB access due to unsafe snprintf() usages (CVE-2020-8608) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-07 plugin id 135249 published 2020-04-07 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135249 title RHEL 7 : qemu-kvm-ma (RHSA-2020:1352) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1298.NASL description According to the versions of the qemu packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.(CVE-2020-7039) - In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.(CVE-2020-8608) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-03 modified 2020-03-23 plugin id 134790 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134790 title EulerOS 2.0 SP8 : qemu (EulerOS-SA-2020-1298) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0844-1.NASL description This update for qemu fixes the following issues : CVE-2020-7039: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1161066). CVE-2019-15034: Fixed a buffer overflow in hw/display/bochs-display.c due to improper PCI config space allocation (bsc#1166379). CVE-2020-1711: Fixed an out of bounds heap buffer access iscsi_co_block_status() routine which could have allowed a remote denial of service or arbitrary code with privileges of the QEMU process on the host (bsc#1166240). CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() routine while emulating the identification protocol and copying message data to a socket buffer (bsc#1123156). CVE-2020-8608: Fixed a heap buffer overflow in tcp_emu() routine while emulating IRC and other protocols (bsc#1163018). CVE-2019-20382: Fixed a memory leak in the VNC display driver which could have led to exhaustion of the host memory leading to a potential Denial of service (bsc#1165776). Fixed a live migration error (bsc#1154790). Fixed an issue where migrating VMs on KVM gets missing features:ospke error (bsc#1162729). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-07 modified 2020-04-02 plugin id 135168 published 2020-04-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135168 title SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2020:0844-1) NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2020-1407.NASL description tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code. (CVE-2020-7039) An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host. (CVE-2020-1711) last seen 2020-03-30 modified 2020-03-26 plugin id 134898 published 2020-03-26 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134898 title Amazon Linux 2 : qemu (ALAS-2020-1407) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4283-1.NASL description Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that QEMU incorrectly handled iSCSI server responses. A remote attacker in control of the iSCSI server could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2020-1711) It was discovered that the QEMU libslirp component incorrectly handled memory. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-7039, CVE-2020-8608). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2020-02-19 plugin id 133796 published 2020-02-19 reporter Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133796 title Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : qemu vulnerabilities (USN-4283-1)
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References
- http://www.openwall.com/lists/oss-security/2020/01/16/2
- https://gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80
- https://gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9
- https://gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289
- https://lists.debian.org/debian-lts-announce/2020/01/msg00022.html
- https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html
- https://seclists.org/bugtraq/2020/Feb/0
- https://www.debian.org/security/2020/dsa-4616
- https://access.redhat.com/errata/RHSA-2020:0348
- https://usn.ubuntu.com/4283-1/
- https://access.redhat.com/errata/RHSA-2020:0775
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
- https://security.gentoo.org/glsa/202005-02
- https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html