CVE-2009-1243
Published: April 6, 2009Last modified: November 10, 2023
Description
net/ipv4/udp.c in the Linux kernel before 2.6.29.1 performs an unlocking step in certain incorrect circumstances, which allows local users to cause a denial of service (panic) by reading zero bytes from the /proc/net/udp file and unspecified other files, related to the "udp seq_file infrastructure."
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/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=30842f2989aacfaba3ccb39829b3417be9313dbe
- http://openwall.com/lists/oss-security/2009/04/01/4
- http://secunia.com/advisories/34478
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1
- http://www.securityfocus.com/bid/34329
- http://www.vupen.com/english/advisories/2009/0924
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49595