CVE-2022-43680
- State
- Published
- Severity
- 7.5 High
- Published
- Oct 24, 2022
- Updated
- Oct 14, 2026
- Reserved
- Oct 24, 2022
Description
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/libexpat/libexpat/pull/650
- https://github.com/libexpat/libexpat/issues/649
- https://github.com/libexpat/libexpat/pull/616
- [debian-lts-announce] 20221028 [SECURITY] [DLA 3165-1] expat security updatemailing-list
- DSA-5266vendor-advisory
- GLSA-202210-38vendor-advisory
- FEDORA-2022-ae2559a8f4vendor-advisory
- FEDORA-2022-3cf0e7ebc7vendor-advisory
- FEDORA-2022-f3a939e960vendor-advisory
- FEDORA-2022-5f1e2e9016vendor-advisory
- FEDORA-2022-49db80f821vendor-advisory
- FEDORA-2022-c43235716evendor-advisory
- https://security.netapp.com/advisory/ntap-20221118-0007/
- [oss-security] 20231228 CVE-2022-43680: Apache OpenOffice: "Use after free" fixed in libexpatmailing-list
- [oss-security] 20240103 CVE-2022-43680: Apache OpenOffice: "Use after free" fixed in libexpatmailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-892048.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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