Advisory severityMedium5.9Red Hat Linux

Medium [CVE-2024-2236] Libgcrypt: vulnerable to marvin attack

This medium-severity Red Hat Linux advisory covers CVE-2024-2236 affecting Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 6.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2024-2236 Source published Mar 6, 2024Source updated Mar 6, 2024

VulniPulse record published Oct 13, 2026

CVE-2024-2236

Affected products & platforms

Red Hat LinuxRed Hat Enterprise Linux

Open source advisory

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Summary

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

An attacker would have to be able to send a large number of trial messages to achieve successful decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OAEP, and RSASVE.

Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-385.

Affected Red Hat products: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8. Red Hat lists Red Hat Enterprise Linux 10 as not affected.

Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat fixing advisory: RHSA-2024:9404, RHSA-2025:3534, RHSA-2025:3530.

Affected products named by the advisory: Red Hat package: libgcrypt.

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 20 hours ago·verify at source

Fixed versions

libgcrypt-0:1.10.0-11.el9
libgcrypt-0:1.10.0-10.el9_2.1
libgcrypt-0:1.10.0-10.el9_4.1
RHSA-2024:9404
RHSA-2025:3534
RHSA-2025:3530

Official advisory · high-confidence parse· fetched 20 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Mitigation for this issue is either not available or the currently available options do not 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 20 hours ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2024-2236NVD CVE.org MITRE

Discussion(0)

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