CVE-2024-0553 — Observable Discrepancy in Gnutls

CWE-203 — Observable DiscrepancyCWE-385 — Covert Timing Channel9 documents8 sources
Severity
7.5HIGHNVD
CNA5.9OSV5.9
EPSS
1.0%
top 22.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GNU GnutlsFedoraproject FedoraRedhat Enterprise Linux
Timeline
PublishedJan 16
Latest updateJan 22

Description

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

▶NVDgnu/gnutls< 3.8.3

Also affects: Fedora 39, Enterprise Linux 8.0, 9.0

🔴Vulnerability Details

4
OSV
gnutls28 vulnerabilities↗2024-01-22
▶
CVEList
Gnutls: incomplete fix for cve-2023-5981↗2024-01-16
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OSV
CVE-2024-0553: A vulnerability was found in GnuTLS↗2024-01-16
▶
GHSA
GHSA-x697-v25m-6phv: A vulnerability was found in GnuTLS↗2024-01-16
▶

📋Vendor Advisories

4
Ubuntu
GnuTLS vulnerabilities↗2024-01-22
▶
Red Hat
gnutls: incomplete fix for CVE-2023-5981↗2024-01-16
▶
Microsoft
Gnutls: incomplete fix for cve-2023-5981↗2024-01-09
▶
Debian
CVE-2024-0553: gnutls28 - A vulnerability was found in GnuTLS. The response times to malformed ciphertexts...↗2024
▶
CVE-2024-0553 — Observable Discrepancy in GNU Gnutls | cvebase