Memory corruption in Linux kernel - CVE-2007-3105

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Main Vulnerability Database Vulnerabilities #VU92866

Memory corruption in Linux kernel - CVE-2007-3105

Published: July 28, 2007 / Updated: February 13, 2023


Vulnerability identifier: #VU92866
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2007-3105
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to read and manipulate data.

Stack-based buffer overflow in the random number generator (RNG) implementation in the Linux kernel before 2.6.22 might allow local root users to cause a denial of service or gain privileges by setting the default wakeup threshold to a value greater than the output pool size, which triggers writing random numbers to the stack by the pool transfer function involving 'bound check ordering'. NOTE: this issue might only cross privilege boundaries in environments that have granular assignment of privileges for root.


Affected software

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

How to mitigate CVE-2007-3105

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