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VulniPulse
Advisory severityMedium5.9Red Hat Linux

Medium [CVE-2024-2467] Perl-crypt-openssl-rsa: side-channel attack in pkcs#1 v1.5 padding mode (marvin attack)

This medium-severity Red Hat Linux advisory covers CVE-2024-2467 affecting Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.

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

CVE-2024-2467 Source published Source updated

VulniPulse record published

CVE-2024-2467
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages.

The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode. 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-208. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.

Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8. Red Hat does not currently list a fixing RHSA for this CVE.

Affected products named by the advisory: Red Hat package: perl-crypt-openssl-rsa.

Is CVE-2024-2467 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2024-2467 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2024-2467?

The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.

Confirm against the vendor advisory before you patch.

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 5 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • This CVE is mitigated (i.e. not exploitable) by using the openssl package with support for implicit rejection shipped in the following RHEL errata: * https://access.redhat.com/errata/RHSA-2024:0208 * https://access.redhat.com/errata/RHSA-2024:0154 * https://access.redhat.com/errata/RHSA-2023:7877 * https://access.redhat.com/errata/RHSA-2024:0500 * https://access.redhat.com/errata/RHBA-2023:6627

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

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