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CVE-2021-4209

Published: 8/24/2022 Last updated: 8/3/2024 Reserved: 1/24/2022

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Opam packages affected (5)

conf-gnutls conf-mingw-w64-gnutls-i686 conf-mingw-w64-gnutls-x86_64 conf-srt conf-srt-gnutls

Products affected (1)

Product Vendor Version
GnuTLS n/a n/a

References (12)