CVE-2024-2467

Perl-crypt-openssl-rsa: side-channel attack in pkcs#1 v1.5 padding mode (marvin attack)

Published Apr 25, 2024 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

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

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-27416 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.
History
Type Values Removed Values Added
First Time appeared Redhat openssl
CPEs cpe:2.3:a:redhat:openssl:-:*:*:*:*:*:*:*
Vendors & Products Redhat openssl
Type Values Removed Values Added
CPEs cpe:2.3:a:redhat:openssl:-:*:*:*:*:*:*:*
Vendors & Products Redhat openssl
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
First Time appeared Redhat openssl
CPEs cpe:2.3:a:redhat:openssl:-:*:*:*:*:*:*:*
Vendors & Products Redhat openssl
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 5, 2026, 12:01 PM
Reserved
Mar 14, 2024, 5:31 PM
Status
Deferred
Published
Apr 25, 2024, 5:15 PM
Modified
Nov 5, 2026, 12:17 PM
Severity
Moderate
Public date
Mar 12, 2024, 12:00 AM