Vulnerability Details : CVE-2023-0590
A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-0590
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-0590
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-0590
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2023-0590
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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)
- secalert@redhat.com (Secondary)
References for CVE-2023-0590
-
https://lore.kernel.org/all/20221018203258.2793282-1-edumazet%40google.com/
[PATCH net] net: sched: fix race condition in qdisc_graft() - Eric Dumazet
-
https://lore.kernel.org/all/20221018203258.2793282-1-edumazet@google.com/
[PATCH net] net: sched: fix race condition in qdisc_graft() - Eric DumazetMailing List;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
[SECURITY] [DLA 3710-1] linux security update
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