Vulnerabilities > CVE-2015-5225 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Buffer overflow in the vnc_refresh_server_surface function in the VNC display driver in QEMU before 2.4.0.1 allows guest users to cause a denial of service (heap memory corruption and process crash) or possibly execute arbitrary code on the host via unspecified vectors, related to refreshing the server display surface.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-1837.NASL description Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow issue was found in the QEMU emulator last seen 2020-06-01 modified 2020-06-02 plugin id 117308 published 2018-09-06 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/117308 title RHEL 7 : qemu-kvm-rhev (RHSA-2015:1837) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2015:1837. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(117308); script_version("1.5"); script_cvs_date("Date: 2019/10/24 15:35:40"); script_cve_id("CVE-2015-5225"); script_xref(name:"RHSA", value:"2015:1837"); script_name(english:"RHEL 7 : qemu-kvm-rhev (RHSA-2015:1837)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow issue was found in the QEMU emulator's VNC display driver. It could occur while refreshing the VNC server's display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host. (CVE-2015-5225) Red Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr Zuozhi from Alibaba Inc. for reporting this issue. All qemu-kvm-rhev users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect." ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2015:1837" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2015-5225" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libcacard-devel-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libcacard-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libcacard-tools-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-img-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools-rhev"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7"); script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/06"); script_set_attribute(attribute:"patch_publication_date", value:"2015/09/24"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/06"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2015:1837"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"libcacard-devel-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"libcacard-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"libcacard-tools-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-img-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-common-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-rhev-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.9")) flag++; if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-tools-rhev-2.1.2-23.el7_1.9")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libcacard-devel-rhev / libcacard-rhev / libcacard-tools-rhev / etc"); } }
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3348.NASL description Several vulnerabilities were discovered in qemu, a fast processor emulator. - CVE-2015-3214 Matt Tait of Google last seen 2020-06-01 modified 2020-06-02 plugin id 85754 published 2015-09-03 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/85754 title Debian DSA-3348-1 : qemu - security update NASL family Fedora Local Security Checks NASL id FEDORA_2015-15364.NASL description Fix typo causing qemu-img to link against entire world (bz #1260996) ---- * CVE-2015-5225: heap memory corruption in vnc_refresh_server_surface (bz #1255899) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2015-09-21 plugin id 86040 published 2015-09-21 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/86040 title Fedora 22 : qemu-2.3.1-3.fc22 (2015-15364) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201602-01.NASL description The remote host is affected by the vulnerability described in GLSA-201602-01 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A remote attacker might cause a Denial of Service or gain escalated privileges from a guest VM. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 88587 published 2016-02-05 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88587 title GLSA-201602-01 : QEMU: Multiple vulnerabilities (Venom) NASL family Fedora Local Security Checks NASL id FEDORA_2015-16368.NASL description - CVE-2015-6815: net: e1000: infinite loop issue (bz #1260225) * CVE-2015-6855: ide: divide by zero issue (bz #1261793) * CVE-2015-5278: Infinite loop in ne2000_receive() (bz #1263284) * CVE-2015-5279: Heap overflow vulnerability in ne2000_receive() (bz #1263287) * Make block copy more stable (bz #1264416) * Fix hang at start of live merge for large images (bz #1262901) ---- * CVE-2015-5225: heap memory corruption in vnc_refresh_server_surface (bz #1255899) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2015-10-12 plugin id 86332 published 2015-10-12 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/86332 title Fedora 21 : qemu-2.1.3-11.fc21 (2015-16368) NASL family Fedora Local Security Checks NASL id FEDORA_2015-14783.NASL description - CVE-2015-5225: heap memory corruption in vnc_refresh_server_surface (bz #1255899) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2015-09-04 plugin id 85774 published 2015-09-04 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/85774 title Fedora 23 : qemu-2.4.0-2.fc23 (2015-14783) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2724-1.NASL description It was discovered that QEMU incorrectly handled a PRDT with zero complete sectors in the IDE functionality. A malicious guest could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-9718) Donghai Zhu discovered that QEMU incorrectly handled the RTL8139 driver. A malicious guest could possibly use this issue to read sensitive information from arbitrary host memory. (CVE-2015-5165) Donghai Zhu discovered that QEMU incorrectly handled unplugging emulated block devices. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 15.04. (CVE-2015-5166) Qinghao Tang and Mr. Zuozhi discovered that QEMU incorrectly handled memory in the VNC display driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 15.04. (CVE-2015-5225) It was discovered that QEMU incorrectly handled the virtio-serial device. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-5745). 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 2020-06-01 modified 2020-06-02 plugin id 85683 published 2015-08-28 reporter Ubuntu Security Notice (C) 2015-2020 Canonical, Inc. / NASL script (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/85683 title Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : qemu, qemu-kvm vulnerabilities (USN-2724-1) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_2B3B4C27B0C711E58D13BC5FF45D0F28.NASL description Prasad J Pandit, Red Hat Product Security Team, reports : Qemu emulator built with the VNC display driver support is vulnerable to a buffer overflow flaw leading to a heap memory corruption issue. It could occur while refreshing the server display surface via routine vnc_refresh_server_surface(). A privileged guest user could use this flaw to corrupt the heap memory and crash the Qemu process instance OR potentially use it to execute arbitrary code on the host. last seen 2020-06-01 modified 2020-06-02 plugin id 87689 published 2016-01-04 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87689 title FreeBSD : qemu -- buffer overflow vulnerability in VNC (2b3b4c27-b0c7-11e5-8d13-bc5ff45d0f28)
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References
- https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg05832.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165484.html
- http://rhn.redhat.com/errata/RHSA-2015-1772.html
- http://www.securitytracker.com/id/1033547
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166798.html
- http://rhn.redhat.com/errata/RHSA-2015-1837.html
- http://www.openwall.com/lists/oss-security/2015/08/21/6
- https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02495.html
- http://www.securityfocus.com/bid/76506
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
- https://security.gentoo.org/glsa/201602-01
- http://www.debian.org/security/2015/dsa-3348