Timing-Based Side-Channel Flaw in PKCS#1v1.5 RSA Encryption Padding Mode Could Lead to Decryption
CVE-2024-2467

5.9MEDIUM

Key Information:

Status
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
25 April 2024

What is CVE-2024-2467?

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.

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References

https://access.redhat.com/security/cve/CVE-2024-2467
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2269567
issue-trackingx_refsource_REDHAT
https://github.com/toddr/Crypt-OpenSSL-RSA/issues/42

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

JSON
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