Public vulnerability disclosure

CVE-2024-12243

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

publishedCWE-407

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.

Technical severity5.3 mediumCVSS 3.1 · CNA: redhat
Published2025-02-10Source updated 2026-11-05
Collected2026-11-052 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority


gnutls
https://gitlab.com/gnutls/gnutls/
≥ 0; ≤ 3.6.16 (affected, semver)
≥ 3.7.0; ≤ 3.7.11 (affected, semver)
≥ 3.8.0; < 3.8.8 (affected, semver)
≥ 3.8.9; < * (unaffected, semver)
Other versions: unknown
CNA: redhat
Red Hat Enterprise Linux 8
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
≥ 0:3.6.16-8.el8_10.3; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Enterprise Linux 9
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
≥ 0:3.8.3-6.el9; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
≥ 0:3.7.6-21.el9_2.4; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Enterprise Linux 9.4 Extended Update Support
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
≥ 0:3.8.3-4.el9_4.2; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Discovery 1.14
Red Hat
discovery/discovery-server-rhel9
https://catalog.redhat.com/software/containers/
≥ 1.14.3-1748529279; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Discovery 1.14
Red Hat
discovery/discovery-ui-rhel9
https://catalog.redhat.com/software/containers/
≥ 1.14.2-1748467619; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Enterprise Linux 10
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
Range not reported
Other versions: unaffected
CNA: redhat
Red Hat Enterprise Linux 6
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
Range not reported
Other versions: unknown
CNA: redhat
Red Hat Enterprise Linux 7
Red Hat
gnutls
https://access.redhat.com/downloads/content/package-browser/
Range not reported
Other versions: unknown
CNA: redhat
Red Hat OpenShift Container Platform 4
Red Hat
openshift/ose-rhel-coreos-9
https://access.redhat.com/downloads/content/package-browser/
Range not reported
Other versions: affected
CNA: redhat
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
Siemens
≥ V3.1.5; < * (affected, custom)
Other versions: unknown
ADP: siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
Siemens
≥ V3.1.5; < * (affected, custom)
Other versions: unknown
ADP: siemens-SADP
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Siemens
≥ V3.1.5; < * (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX MX5000
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX MX5000RE
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1400
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1500
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1501
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1510
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1511
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1512
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1524
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX1536
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP
RUGGEDCOM ROX RX5000
Siemens
≥ 0; < V2.17.0 (affected, custom)
Other versions: unknown
ADP: siemens-SADP

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 5.3
medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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