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Fencer Vulns
medium 5.9

CVE-2024-2467 json

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

published 2024-04-25 2 y ago modified 2026-11-05 3 d ago also EUVD-2024-27416

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

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.

Patch / fix

  • libcrypt-openssl-rsa-perl Debian 14, Debian 13 0.35-1

debian advisories DEBIAN-CVE-2024-2467

  • perl-Crypt-OpenSSL-RSA SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 0.28-150600.19.3.1
  • perl-Crypt-OpenSSL-RSA SLES LTSS Extended Security 12 SP5 0.28-10.3.1

suse advisories SUSE-SU-2025:01887-1SUSE-SU-2025:01884-1

  • perl-Crypt-OpenSSL-RSA openSUSE Tumbleweed 0.350.0-1.1

opensuse advisories openSUSE-SU-2025:15199-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-2467 updated cvss 5.9

perl-Crypt-OpenSSL-RSA: side-channel attack in PKCS#1 v1.5 padding mode (Marvin Attack)

  • Red Hat Enterprise Linux 6 perl-Crypt-OpenSSL-RSA Red Hat Enterprise Linux 7 perl-Crypt-OpenSSL-RSA
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 perl-Crypt-OpenSSL-RSA
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 perl-Crypt-OpenSSL-RSA
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • redhat openssl

Classification

Weakness
  • CWE-208 Observable Timing Discrepancy

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.