CVE-2024-2467

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

Products / packages perl-Crypt-OpenSSL-RSA · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · 3 more

Published 25/04/2024, 16:45:02 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 00:55:33 UTC

redhat · CVSS:3.1 · 5.9

Assessment vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity

medium5.9

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

A timing-based side-channel flaw in perl-Crypt-OpenSSL-RSA's PKCS#1v1.5 RSA encryption padding mode could allow an attacker to recover plaintext. The attacker would need to send a large number of trial messages. The vulnerability affects Red Hat Enterprise Linux 6, 7, 8, and 9.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

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4 ranges

CISA-ADP version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-6.0

pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-7.0

pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-8.0

pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-9.0

Other versions: unknown

Product identifiers (CPE)

cpe:2.3:a:redhat:openssl:-:*:*:*:*:*:*:*

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

This CVE is mitigated (i.e. not exploitable) by using the openssl package with support for implicit rejection shipped in the following RHEL errata:

redhat guidance ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher 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.

References

4 sources

access.redhat.com/security/cve/CVE-2024-2467

Security advisoryredhat · CVE

bugzilla.redhat.com/show_bug.cgi

Source referenceredhat · CVE

toddr/Crypt-OpenSSL-RSA · issues/42

Source referenceredhat · CVE

people.redhat.com/~hkario/marvin/

Source referenceredhat · CVE

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance

Weakness classification

Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2024-2467

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-208 ↗

Observable Timing Discrepancy

redhat

Contributing organizations · 3

redhat

Assigning organization

2026-11-05

CISA-ADP

Additional data publisher

2024-09-18

CVE

Additional data publisher

2024-08-01

Timeline

All times UTC

25 Apr 2024, 16:45
Advisory published
Publication date supplied by the source.
5 Nov 2026, 12:01
Source updated
Latest modification date supplied by the source.
5 Nov 2026, 12:44
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: 0.52% estimated probability in the next 30 days. 2026-11-04 · FIRST EPSS.

CISA-ADP · SSVC

CISA Coordinator · 2024-07-13

Exploitation: none
Automatable: no
Technical Impact: partial

SSVC describes the publisher’s decision context. Your organization’s exposure and priorities may differ.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2024-2467