Buffer overflow in Agronholm Cbor2
CVE-2024-26134
cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 8949) serialization format. Starting in version 5.5.1 and prior to version 5.6.2, an attacker can crash a service using cbor2 to parse a CBOR bin…
Vulnerability class: Buffer Overflow
EPSS: 0.011 (78.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Agronholm Cbor2 — versions >= 5.5.1, < 5.6.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/agronholm/cbor2/security/advisories/GHSA-375g-39jq-vq7m (x_refsource_CONFIRM)
- https://github.com/agronholm/cbor2/pull/204 (x_refsource_MISC)
- https://github.com/agronholm/cbor2/commit/387755eacf0be35591a478d3c67fe10618a6d542 (x_refsource_MISC)
- https://github.com/agronholm/cbor2/commit/4de6991ba29bf2290d7b9d83525eda7d021873df (x_refsource_MISC)
- https://github.com/agronholm/cbor2/releases/tag/5.6.2 (x_refsource_MISC)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
Frequently asked questions
- What is CVE-2024-26134?
- CVE-2024-26134 is a high-severity vulnerability in Agronholm Cbor2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-02-19.
- How severe is CVE-2024-26134?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-26134 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.