Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.2%
exploitation probability
1.2%top 33% of all CVEs
observed exploitation
nono source reports it
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
gnutlsRed Hat · Red Hat Discovery 1.14Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat · Red Hat OpenShift Container Platform 4References
https://access.redhat.com/errata/RHSA-2025:17361https://access.redhat.com/errata/RHSA-2025:4051https://access.redhat.com/errata/RHSA-2025:7076https://access.redhat.com/errata/RHSA-2025:8020https://access.redhat.com/errata/RHSA-2025:8385https://access.redhat.com/security/cve/CVE-2024-12243https://bugzilla.redhat.com/show_bug.cgi?id=2344615https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-202008.htmlhttps://gitlab.com/gnutls/gnutls/-/issues/1553https://gitlab.com/gnutls/libtasn1/-/issues/52https://lists.debian.org/debian-lts-announce/2025/02/msg00027.html