Vulnerability Details : CVE-2022-2585
It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.
Vulnerability category: Memory Corruption
Products affected by CVE-2022-2585
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-2585
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-2585
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-01-19 |
5.3
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H |
1.0
|
4.2
|
Canonical Ltd. | 2024-01-08 |
CWE ids for CVE-2022-2585
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- security@ubuntu.com (Secondary)
References for CVE-2022-2585
-
https://ubuntu.com/security/notices/USN-5566-1
USN-5566-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://ubuntu.com/security/notices/USN-5565-1
USN-5565-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://lore.kernel.org/lkml/20220809170751.164716-1-cascardo@canonical.com/T/#u
[PATCH] posix-cpu-timers: Cleanup CPU timers before freeing them during execMailing List;Patch
-
https://ubuntu.com/security/notices/USN-5564-1
USN-5564-1: Linux kernel (Intel IoTG) vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://www.openwall.com/lists/oss-security/2022/08/09/7
oss-security - CVE-2022-2585 - Linux kernel POSIX CPU timer UAFMailing List
-
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2585
CVE - CVE-2022-2585Third Party Advisory
-
https://ubuntu.com/security/notices/USN-5567-1
USN-5567-1: Linux kernel (OEM) vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
Jump to