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

5.3MEDIUM

Key Information:

Vendor
Red Hat
Status
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
10 February 2025

Summary

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.

References

https://access.redhat.com/security/cve/CVE-2024-12243
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2344615
issue-trackingx_refsource_REDHAT
https://gitlab.com/gnutls/libtasn1/-/issues/52

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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