Gnutls: gnutls: information disclosure via timing side-channel in pkcs#7 padding removal
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- gnutls
0
- gnutls
Version range not reported
- gnutls
Version range not reported
- gnutls
Version range not reported
- gnutls
Version range not reported
- gnutls
Version range not reported
- cert-manager/jetstack-cert-manager-acmesolver-rhel9
Version range not reported
- cert-manager/jetstack-cert-manager-rhel9
Version range not reported
- cert-manager/cert-manager-operator-rhel9
Version range not reported
- cert-manager/cert-manager-operator-bundle
Version range not reported
- cert-manager/jetstack-cert-manager-acmesolver-rhel9
Version range not reported
- cert-manager/jetstack-cert-manager-rhel9
Version range not reported
- cert-manager/cert-manager-istio-csr-rhel9
Version range not reported
- cert-manager/cert-manager-operator-rhel9
Version range not reported
- cert-manager/cert-manager-operator-bundle
Version range not reported
- cert-manager/cert-manager-trust-manager-rhel9
Version range not reported
- discovery/discovery-server-rhel9
Version range not reported
- discovery/discovery-ui-rhel9
Version range not reported
- gnutls-main
Version range not reported
- rhai/base-image-neuron-rhel9
Version range not reported
- rhui5/cds-rhel9
Version range not reported
- rhui5/haproxy-rhel9
Version range not reported
- rhui5/installer-rhel9
Version range not reported
- rhui5/rhua-rhel9
Version range not reported
- rhui5/cds-kubernetes-tp-rhel9
Version range not reported
- rhui5/installer-tp-rhel9
Version range not reported
- rhui5/rhua-tp-rhel9
Version range not reported
- gnutls
Version range not reported
- gnutls
Version range not reported
- gnutls
Version range not reported
- openshift4/ose-hypershift-rhel9
Version range not reported
- openshift/ose-rhel-coreos-8
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
References 21
access.redhat.com
- errata/RHSA-2026:13274
- errata/RHSA-2026:20612
- errata/RHSA-2026:20613
- errata/RHSA-2026:26319
- errata/RHSA-2026:26409
- errata/RHSA-2026:29197
- errata/RHSA-2026:30004
- errata/RHSA-2026:32962
- errata/RHSA-2026:58981
- errata/RHSA-2026:72502
- errata/RHSA-2026:74674
- errata/RHSA-2026:82304
- errata/RHSA-2026:82322
- errata/RHSA-2026:82347
- errata/RHSA-2026:82354
- errata/RHSA-2026:82372
- errata/RHSA-2026:82857
- errata/RHSA-2026:82888
- security/cve/CVE-2026-5419