Vulnerability Details : CVE-2023-1859
A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-1859
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.3:rc6:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1859
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-2023-1859
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-2023-1859
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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-2023-1859
-
https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz@163.com/
[PATCH net v2] 9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition - Zheng WangMailing List;Patch
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