GHSA-rxqq-3mgh-v3m7HighCVSS 7.5
A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule...
🔗 CVE IDs covered (1)
📋 Description
A flaw was found in tftp-hpa. When the in.tftpd remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the genmatchstring() function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-85234
- https://access.redhat.com/security/cve/CVE-2026-85234
- https://bugzilla.redhat.com/show_bug.cgi?id=2460997
- https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327
- https://github.com/advisories/GHSA-rxqq-3mgh-v3m7