CVE-2023-5981

Gnutls: timing side-channel in the rsa-psk authentication

Published Nov 28, 2023 CVSS 3.1 · 5.9 Medium EPSS 1.3% KEV · Not listed
Description
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

Remediation

Vendor Workaround

To address the issue found upgrade to GnuTLS 3.8.2 or later versions.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3660-1 gnutls28 security update
Debian DLA Debian DLA DLA-3740-1 gnutls28 security update
EUVD EUVD EUVD-2023-58248 A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
Ubuntu USN Ubuntu USN USN-6499-1 GnuTLS vulnerability
Ubuntu USN Ubuntu USN USN-6499-2 GnuTLS vulnerability
History
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
First Time appeared Debian
Debian debian Linux
CPEs cpe:2.3:a:gnu:gnutls:1.5.0:*:*:*:*:*:*:* cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Vendors & Products Debian
Debian debian Linux
Type Values Removed Values Added
Weaknesses CWE-208
Type Values Removed Values Added
Metrics epss

{'score': 0.00561}

epss

{'score': 0.00577}