VulnerabilityModified
CVE-2023-52425
libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.
HIGH 7.5EPSS 1.81%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.81% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- libexpat project/libexpat
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2024/03/20/5
- https://github.com/libexpat/libexpat/pull/789Exploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
- https://security.netapp.com/advisory/ntap-20240614-0003/
- http://www.openwall.com/lists/oss-security/2024/03/20/5
- https://github.com/libexpat/libexpat/pull/789Exploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
- https://security.netapp.com/advisory/ntap-20240614-0003/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.