CVE-2009-4895
Published: September 8, 2010Last modified: November 10, 2023
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.7 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.50-r0) |
| Stream | linux-lts | Not affected (6.1.50-r0) |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116
- http://www.debian.org/security/2010/dsa-2094
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6
- http://www.openwall.com/lists/oss-security/2010/06/15/2
- http://www.openwall.com/lists/oss-security/2010/06/15/3
- http://www.openwall.com/lists/oss-security/2010/06/15/4
- http://www.openwall.com/lists/oss-security/2010/06/15/5
- http://www.ubuntu.com/usn/USN-1000-1
- https://bugzilla.kernel.org/show_bug.cgi?id=14605
- https://bugzilla.redhat.com/show_bug.cgi?id=559100