Medium [CVE-2024-28835] Gnutls: potential crash during chain building/verification
This medium-severity Red Hat Linux advisory covers CVE-2024-28835 affecting Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted.pem bundle using the "certtool --verify-chain" command.
The observed crash in GnuTLS during certificate chain verification, triggered by a specific certificate configuration, represents a moderate severity issue due to its potential impact on security-critical operations reliant on certificate validation.
The crash may indicate an underlying flaw in GnuTLS's handling of certain certificate attributes or structures, potentially exposing systems to denial-of-service vulnerabilities or bypassing security checks if exploited maliciously.
Given that certificate validation is a fundamental aspect of secure communication protocols such as TLS, the inability to reliably verify certificate chains could lead to unauthorized access, data integrity breaches, or interception of sensitive information. Red Hat severity: Moderate — CVSS 5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H).
Weakness: CWE-248. Affected Red Hat products: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
Red Hat lists Red Hat Enterprise Linux 8 as not affected. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
- gnutls-0:3.7.6-23.el9_3.4
- gnutls-0:3.8.3-4.el9_4
- gnutls-0:3.7.6-21.el9_2.3
- RHSA-2024:1879
- RHSA-2024:2570
- RHSA-2024:2889
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
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