CVE-2024-12243: medium-severity vulnerability in gnutls
Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.3%
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 4Related CVEs — gnutls
In the same product, most dangerous first.
CVE-2024-6387HIGHOpenssh: regresshion - race condition in ssh allows rce/dosEPSS 99.5%CVE-2024-3094CRITICALXz: malicious code in distributed sourceEPSS 90.9%CVE-2024-12084CRITICALRsync: heap buffer overflow in rsync due to improper checksum length handlingEPSS 72.5%CVE-2025-10230CRITICALSamba: command injection in wins server hook scriptEPSS 39.8%CVE-2025-26466MEDIUMOpenssh: denial-of-service in opensshEPSS 38.7%CVE-2024-6409HIGHOpenssh: possible remote code execution due to a race condition in signal handling affecting red hat enterprise linux 9EPSS 27.9%
References
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