CVE-2023-1859
Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 17 May 2023, 00:00
Last modified:18 Mar 2025, 18:57
Vulnerability Summary
Overall Risk (default)
low
19/100 CVSS Score
4.7 MEDIUM
v3.1 (cve.org)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
17 May 2023, 00:00
Published
Vulnerability first disclosed
18 Mar 2025, 18:57
Last Modified
Vulnerability information updated
Description
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.01%• Percentile: 1%
Techniques & Countermeasures
- CWE-416•Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected Systems
- linux•linux_kernel
≤ 6.2 | 6.3:rc1 | 6.3:rc2 | 6.3:rc3 | 6.3:rc4 | 6.3:rc5 | 6.3:rc6