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CVE-2024-12243

Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos

Published: Feb 10, 2025Updated: May 12, 2026 Sources: CVE List NVD BDU csafCWE-407
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
1.2%
Top 36.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-407

Affected Products

Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
On-premOS
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2025:17361
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:4051
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:7076
access.redhat.com
and 271 more references View all →

Timeline

Published
Feb 10, 2025
Last Updated
May 12, 2026

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