Vulnerability Details : CVE-2023-45322
libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."
Vulnerability category: Memory Corruption
Products affected by CVE-2023-45322
- cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-45322
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-45322
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2023-45322
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-45322
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http://www.openwall.com/lists/oss-security/2023/10/06/5
oss-security - CVE-2023-45322: Use-after-free in libxml2 through 2.11.5Mailing List;Patch;Third Party Advisory
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https://gitlab.gnome.org/GNOME/libxml2/-/issues/344
Inject random malloc failures when fuzzing (#344) · Issues · GNOME / libxml2 · GitLabIssue Tracking;Patch;Vendor Advisory
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https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
Memory error: heap-use-after-free in xmllint (xmlUnlinkNode) (#583) · Issues · GNOME / libxml2 · GitLabIssue Tracking;Patch;Vendor Advisory
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