Denial-of-Service Vulnerability in GnuTLS Affecting libtasn1
CVE-2024-12243

5.3MEDIUM

Key Information:

Status
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions
Vendor
CVE Published:
10 February 2025

What is CVE-2024-12243?

A vulnerability has been identified in GnuTLS due to an inefficient algorithm within libtasn1 responsible for ASN.1 data processing. This flaw permits a remote attacker to craft specific DER-encoded certificates that can compel GnuTLS to consume excessive resources, leading to potential unresponsiveness or slow performance. Consequently, this may result in a denial-of-service condition, disrupting normal operations.

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References

https://access.redhat.com/errata/RHSA-2025:17361
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:4051
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:7076
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Bing Shi for reporting this issue.
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