PT-2020-7045 · Linux · Linux Kernel

Published 2020-01-15 · Updated 2020-02-04 · CVE-2007-4774

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.4.36-rc1

Description The issue is related to a race condition in the Linux kernel. It allows bypassing systrace policies by flooding the ptraced process with SIGCONT signals, which can wake up a PTRACED process.

Recommendations For versions prior to 2.4.36-rc1, update to version 2.4.36-rc1 or later to resolve the issue. As a temporary workaround, consider restricting the use of SIGCONT signals to minimize the risk of exploitation.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2007-4774

Affected Products

Linux Kernel

References · 8

• https://cve.org/CVERecord?id=CVE-2007-4774 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2007-4774 · Vendor Advisory
• https://ubuntu.com/security/CVE-2007-4774 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2007-4774 · Security Note
• https://t.me/cibsecurity/9219 · Telegram Post
• https://osdn.net/projects/linux-kernel-docs/scm/git/linux-2.4.36/listCommit?skip=60 · Note
• http://taviso.decsystem.org/research.html · Note
• https://security.netapp.com/advisory/ntap-20200204-0002 · Note