PT-2017-12836 · Tcpdump+4 · Tcpdump+4

Antti Levomäki + 1 · Published 2017-09-10 · Updated 2024-06-15 · CVE-2017-12997

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 tcpdump versions prior to 4.9.2

Description The issue is related to a bug in the LLDP parser, which could cause an infinite loop due to a problem in the lldp private 8021 print() function. This could potentially allow a remote attacker to obtain sensitive information by sending a specially crafted request, exploiting a buffer overread memory issue in the HNCP component.

Recommendations For versions prior to 4.9.2, update to version 4.9.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the LLDP parser or the HNCP component to minimize the risk of exploitation.

Fix

Out of bounds Read

Infinite Loop

Weakness Enumeration

CWE-125

CWE-835

Related Identifiers

ALT-PU-2019-1321

CVE-2017-12997

DLA-1097-1

DSA-3971-1

MGASA-2017-0335

OPENSUSE-SU-2024:11425-1

SUSE-SU-2017:2854-1

USN-3415-1

USN-3415-2

Affected Products

Alt Linux

Ibm Aix

Suse

Ubuntu

Tcpdump

References · 277

• https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6 · Patch
• https://ubuntu.com/security/CVE-2017-13022 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13020 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13038 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13019 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13014 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12999 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13039 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13002 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12992 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13046 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13015 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13048 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12990 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13030 · Vendor Advisory