Vulnerabilities > CVE-2018-6836 - Release of Invalid Pointer or Reference vulnerability in Wireshark
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2018-CDF3F8E8B0.NASL description Removing dependency on wireshark metapackage from wireshark-cli ---- Added wireshark-qt to wireshark metapackage ---- - New version 2.4.5 - Contains fixes for CVE-2018-7419, CVE-2018-7418, CVE-2018-7417, CVE-2018-7420, CVE-2018-7320, CVE-2018-7336, CVE-2018-7337, CVE-2018-7334, CVE-2018-7335, CVE-2018-6836, CVE-2018-5335, CVE-2018-5334, CVE-2017-6014, CVE-2017-9616, CVE-2017-9617, CVE-2017-9766 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-03-28 plugin id 108674 published 2018-03-28 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108674 title Fedora 27 : 1:wireshark (2018-cdf3f8e8b0) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2018-cdf3f8e8b0. # include("compat.inc"); if (description) { script_id(108674); script_version("1.6"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-17997", "CVE-2017-6014", "CVE-2017-9616", "CVE-2017-9617", "CVE-2017-9766", "CVE-2018-5334", "CVE-2018-5335", "CVE-2018-6836", "CVE-2018-7320", "CVE-2018-7334", "CVE-2018-7335", "CVE-2018-7336", "CVE-2018-7337", "CVE-2018-7417", "CVE-2018-7418", "CVE-2018-7419", "CVE-2018-7420"); script_xref(name:"FEDORA", value:"2018-cdf3f8e8b0"); script_name(english:"Fedora 27 : 1:wireshark (2018-cdf3f8e8b0)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "Removing dependency on wireshark metapackage from wireshark-cli ---- Added wireshark-qt to wireshark metapackage ---- - New version 2.4.5 - Contains fixes for CVE-2018-7419, CVE-2018-7418, CVE-2018-7417, CVE-2018-7420, CVE-2018-7320, CVE-2018-7336, CVE-2018-7337, CVE-2018-7334, CVE-2018-7335, CVE-2018-6836, CVE-2018-5335, CVE-2018-5334, CVE-2017-6014, CVE-2017-9616, CVE-2017-9617, CVE-2017-9766 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. 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://bodhi.fedoraproject.org/updates/FEDORA-2018-cdf3f8e8b0" ); script_set_attribute( attribute:"solution", value:"Update the affected 1:wireshark package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:1:wireshark"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:27"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/17"); script_set_attribute(attribute:"patch_publication_date", value:"2018/03/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/28"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^27([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 27", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC27", reference:"wireshark-2.4.5-3.fc27", epoch:"1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "1:wireshark"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2018-BFDAD62CD6.NASL description Removing dependency on wireshark metapackage from wireshark-cli ---- Added wireshark-qt to wireshark metapackage ---- - New version 2.4.5 - Contains fixes for CVE-2018-7419, CVE-2018-7418, CVE-2018-7417, CVE-2018-7420, CVE-2018-7320, CVE-2018-7336, CVE-2018-7337, CVE-2018-7334, CVE-2018-7335, CVE-2018-6836, CVE-2018-5335, CVE-2018-5334, CVE-2017-6014, CVE-2017-9616, CVE-2017-9617, CVE-2017-9766 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2019-01-03 plugin id 120757 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120757 title Fedora 28 : 1:wireshark (2018-bfdad62cd6) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2018-bfdad62cd6. # include("compat.inc"); if (description) { script_id(120757); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-17997", "CVE-2017-6014", "CVE-2017-9616", "CVE-2017-9617", "CVE-2017-9766", "CVE-2018-5334", "CVE-2018-5335", "CVE-2018-6836", "CVE-2018-7320", "CVE-2018-7334", "CVE-2018-7335", "CVE-2018-7336", "CVE-2018-7337", "CVE-2018-7417", "CVE-2018-7418", "CVE-2018-7419", "CVE-2018-7420"); script_xref(name:"FEDORA", value:"2018-bfdad62cd6"); script_name(english:"Fedora 28 : 1:wireshark (2018-bfdad62cd6)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "Removing dependency on wireshark metapackage from wireshark-cli ---- Added wireshark-qt to wireshark metapackage ---- - New version 2.4.5 - Contains fixes for CVE-2018-7419, CVE-2018-7418, CVE-2018-7417, CVE-2018-7420, CVE-2018-7320, CVE-2018-7336, CVE-2018-7337, CVE-2018-7334, CVE-2018-7335, CVE-2018-6836, CVE-2018-5335, CVE-2018-5334, CVE-2017-6014, CVE-2017-9616, CVE-2017-9617, CVE-2017-9766 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. 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://bodhi.fedoraproject.org/updates/FEDORA-2018-bfdad62cd6" ); script_set_attribute( attribute:"solution", value:"Update the affected 1:wireshark package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-6836"); 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:fedoraproject:fedora:1:wireshark"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:28"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/17"); script_set_attribute(attribute:"patch_publication_date", value:"2018/04/17"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^28([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 28", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC28", reference:"wireshark-2.4.5-3.fc28", epoch:"1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "1:wireshark"); }