Insufficient verification of data authenticity in Linux kernel - CVE-2007-3848

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Main Vulnerability Database Vulnerabilities #VU99773

Insufficient verification of data authenticity in Linux kernel - CVE-2007-3848

Published: August 14, 2007 / Updated: October 15, 2018


Vulnerability identifier: #VU99773
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2007-3848
CWE-ID: CWE-345
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform service disruption.

Linux kernel 2.4.35 and other versions allows local users to send arbitrary signals to a child process that is running at higher privileges by causing a setuid-root parent process to die, which delivers an attacker-controlled parent process death signal (PR_SET_PDEATHSIG).


Affected software

Linux kernel
Ubuntu
linux-source-2.6.17 (Ubuntu package)
linux-source-2.6.20 (Ubuntu package)

How to mitigate CVE-2007-3848

Install update from vendor's repository.

linux-source-2.6.17 (Ubuntu package) - update to 2.6.17.1-12.40
linux-source-2.6.20 (Ubuntu package) - update to 2.6.20-16.31

External References

Related Security Bulletins