CVE-2024-8176
Published: March 14, 2025Last modified: March 14, 2025
Description
A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack Vector | NETWORK |
Attack complexity | LOW |
Privileges required | NONE |
User interaction | NONE |
Scope | UNCHANGED |
Confidentiality | NONE |
Integrity impact | NONE |
Availability impact | HIGH |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
Product | Release | Package | Status |
---|---|---|---|
Alpaquita Linux | 23 LTS | expat | Fixed (2.7.0-r1) |
Stream | expat | Fixed (2.7.0-r1) |
References
- http://www.openwall.com/lists/oss-security/2025/03/15/1
- https://access.redhat.com/errata/RHSA-2025:3531
- https://access.redhat.com/errata/RHSA-2025:3734
- https://access.redhat.com/errata/RHSA-2025:3913
- https://access.redhat.com/errata/RHSA-2025:4048
- https://access.redhat.com/errata/RHSA-2025:4446
- https://access.redhat.com/errata/RHSA-2025:4447
- https://access.redhat.com/errata/RHSA-2025:4448
- https://access.redhat.com/errata/RHSA-2025:4449
- https://access.redhat.com/errata/RHSA-2025:7444
- https://access.redhat.com/errata/RHSA-2025:7512
- https://access.redhat.com/errata/RHSA-2025:8385
- https://access.redhat.com/security/cve/CVE-2024-8176
- https://blog.hartwork.org/posts/expat-2-7-0-released/
- https://bugzilla.redhat.com/show_bug.cgi?id=2310137
- https://bugzilla.suse.com/show_bug.cgi?id=1239618
- https://github.com/libexpat/libexpat/blob/R_2_7_0/expat/Changes#L40-L52
- https://github.com/libexpat/libexpat/issues/893
- https://gitlab.alpinelinux.org/alpine/aports/-/commit/d068c3ff36fc6f4789988a09c69b434db757db53
- https://security-tracker.debian.org/tracker/CVE-2024-8176
- https://security.netapp.com/advisory/ntap-20250328-0009/
- https://ubuntu.com/security/CVE-2024-8176
- https://www.kb.cert.org/vuls/id/760160