Improper handling of exceptional conditions in Comrak - CVE-2023-28631
Published: August 20, 2023
Vulnerability identifier: #VU79723
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-28631
CWE-ID: CWE-755
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Comrak
Comrak
Software vendor:
Comrak Project
Comrak Project
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of errors when parsing AST. A remote attacker can send specially crafted input and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://github.com/kivikakk/comrak/commit/9ff5f8df0ac951f5742d22a72c39b89a15f56639
- https://github.com/kivikakk/comrak/security/advisories/GHSA-5r3x-p7xx-x6q5
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N/