GHSA-xj78-h3gx-cm6vMediumCVSS 6.5
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (9)
- https://nvd.nist.gov/vuln/detail/CVE-2021-4209
- https://access.redhat.com/security/cve/CVE-2021-4209
- https://bugzilla.redhat.com/show_bug.cgi?id=2044156
- https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568
- https://gitlab.com/gnutls/gnutls/-/issues/1306
- https://gitlab.com/gnutls/gnutls/-/merge_requests/1503
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://security.netapp.com/advisory/ntap-20220915-0005
- https://github.com/advisories/GHSA-xj78-h3gx-cm6v