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

Status: published. Published: 2024-04-25. Updated: 2026-11-05.

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

- 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 (source: CNA: redhat)

## Affected products and versions

-  /  (perl-Crypt-OpenSSL-RSA): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (perl-Crypt-OpenSSL-RSA): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (perl-Crypt-OpenSSL-RSA): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (perl-Crypt-OpenSSL-RSA): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (perl-Crypt-OpenSSL-RSA): Version range not reported. Source: CNA: redhat
- redhat / openssl: pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-6.0 (affected); pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-7.0 (affected); pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-8.0 (affected); pkg:rpm/redhat/perl-crypt-openssl-rsa@distro=redhat-enterprise-linux-9.0 (affected). Source: ADP: CISA-ADP

## Severity and prioritization

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.52% as of 2026-11-04; percentile 44.08%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-208

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2024-2467 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269567 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42 (CNA: redhat)

- https://people.redhat.com/~hkario/marvin/ (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2024-2467 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269567 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42 (ADP: CVE; x_transferred)

- https://people.redhat.com/~hkario/marvin/ (ADP: CVE; x_transferred)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-2467; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-2467; retrieved 2026-11-05; source updated Not reported

Revision: 79995051ed70492a22a02b90281d551abdb2f23832a4c9eca6a027e03e44aa23

Canonical: https://y2.dev/cve/CVE-2024-2467

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.