---
id: CVE-2024-2467
title: >-
  Perl-crypt-openssl-rsa: side-channel attack in pkcs#1 v1.5 padding mode
  (marvin attack)
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 …
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-208
vendor: Red Hat
product: perl-Crypt-OpenSSL-RSA
affected:
  - perl-Crypt-OpenSSL-RSA (all versions)
  - perl-Crypt-OpenSSL-RSA
  - perl-Crypt-OpenSSL-RSA
  - perl-Crypt-OpenSSL-RSA (all versions)
  - perl-Crypt-OpenSSL-RSA (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-07-13T20:18:07.779248Z'
published: '2024-04-25'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T12:01:50.718Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-2467'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2024-2467'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2269567'
    label: RHBZ#2269567
  - url: 'https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42'
  - url: 'https://people.redhat.com/~hkario/marvin/'
tags:
  - cve.org
epss: 0.00516
epssPercentile: 0.44183
ingestedAt: '2026-11-05T21:36:00.832Z'
---

## Overview

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.

## Affected

- `perl-Crypt-OpenSSL-RSA (all versions)`
- `perl-Crypt-OpenSSL-RSA`
- `perl-Crypt-OpenSSL-RSA`
- `perl-Crypt-OpenSSL-RSA (all versions)`
- `perl-Crypt-OpenSSL-RSA (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

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