CVE-2009-3238
MEDIUM severity · CVSS 5.5 · CWE-338
5.5CVSS MEDIUM
Summary
The get_random_int function in drivers/char/random.c in the Linux kernel before 2.6.30 produces insufficiently random numbers, which allows attackers to predict the return value, and possibly defeat protection mechanisms based on randomization, via vectors that leverage the function's tendency to "return the same value over and over again for long stretches of time."
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)2%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://patchwork.kernel.org/patch/21766/ ↗
Additional information
- NVD record
- http://patchwork.kernel.org/patch/21766/Patch
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8a0a9bd4db63bc45e3017bedeafbd88d0eb84d02
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/37351
- http://www.redhat.com/support/errata/RHSA-2009-1438.html