CVE-2009-4895
MEDIUM severity · CVSS 4.7 · CWE-362
4.7CVSS MEDIUM
Summary
Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2010/06/15/2 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2010/06/15/2Patch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116
- http://www.debian.org/security/2010/dsa-2094Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6
- http://www.openwall.com/lists/oss-security/2010/06/15/3Advisory
- http://www.openwall.com/lists/oss-security/2010/06/15/4Advisory
- http://www.openwall.com/lists/oss-security/2010/06/15/5Advisory
- http://www.ubuntu.com/usn/USN-1000-1Advisory