PT-2018-17769 · Wireshark+1 · Wireshark+1

Sidewinder13 · Published 2018-02-08 · Updated 2020-08-24 · CVE-2018-6836

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Wireshark versions prior to 2.4.5

Description The issue is related to the netmonrec comment destroy function in wiretap/netmon.c, which performs a free operation on an uninitialized memory address. This allows remote attackers to cause a denial of service, resulting in an application crash, or possibly have other unspecified impacts on the system.

Recommendations For Wireshark versions prior to 2.4.5, update to version 2.4.5 or later to resolve the issue. At the moment, there is no information about other mitigation measures for this vulnerability.

Exploit

Fix

DoS

Weakness Enumeration

CWE-763

Related Identifiers

ALT-PU-2018-1290

CVE-2018-6836

Affected Products

Alt Linux

Wireshark

References · 39

• 🔥 https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6836 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7335 · Security Note
• https://ubuntu.com/security/CVE-2018-6836 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7331 · Security Note
• https://code.wireshark.org/review/#/c/25660 · Patch
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7417 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-6836 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-6836 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7336 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-6836 · Security Note
• https://errata.altlinux.org/ALT-PU-2018-1290 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7329 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7321 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7334 · Security Note