PT-2023-8678 · Gnutls+10 · Gnutls+10

Daiki Ueno + 1 · Published 2023-10-23 · Updated 2026-05-26 · CVE-2023-5981

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions GnuTLS (affected versions not specified)

Description A vulnerability was found related to the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange, which differ from response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue is associated with information disclosure through inconsistency. Exploitation of the vulnerability may allow a remote attacker to access confidential data.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Side Channel Attack

Weakness Enumeration

CWE-203

CWE-208

Related Identifiers

ALSA-2024:0155

ALSA-2024:0533

ALSA-2024:0627

ALT-PU-2023-7522

ALT-PU-2023-7523

ALT-PU-2023-7808

ALT-PU-2024-1572

ALT-PU-2024-1574

AZL-32048

BDU:2024-01500

CESA-2024_0155

CVE-2023-5981

DLA-3660-1

DLA-3740-1

JLSEC-2026-524

MGASA-2024-0008

OESA-2023-1867

OPENSUSE-SU-2023_4983-1

OPENSUSE-SU-2024:13444-1

RHSA-2024:0155

RHSA-2024:0319

RHSA-2024:0399

RHSA-2024:0451

RHSA-2024:0533

RHSA-2024_0155

RHSA-2024_0533

RLSA-2024:0155

SUSE-SU-2023:4952-1

SUSE-SU-2023:4983-1

SUSE-SU-2023:4986-1

SUSE-SU-2023_4983-1

SUSE-SU-2023_4986-1

SUSE-SU-2024:0860-1

SUSE-SU-2024:1179-1

SUSE-SU-2024_0860-1

USN-6499-1

USN-6499-2

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Gnutls

Linuxmint

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 117

• https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6499-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:2094 · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2026-524 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2023-1867 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2023-5981 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:0155 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6499-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1179-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:0627 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6499-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-5981 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-5981 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-5981 · Vendor Advisory