PT-2026-31039 · Openssl+5 · Openssl+5
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
OpenSSL versions 3.0 through 3.6
Description
Processing a specially crafted CMS EnvelopedData message with KeyTransportRecipientInfo can lead to a NULL pointer dereference. This can cause applications that process attacker-controlled CMS data to crash before authentication or cryptographic operations, resulting in a Denial of Service. The issue occurs when examining the optional parameters field of RSA-OAEP SourceFunc algorithm identifier without verifying its presence, leading to a NULL pointer dereference if the field is missing. Applications and services using CMS decrypt() on untrusted input, such as S/MIME processing or CMS-based protocols, are affected.
Recommendations
Update to a version after 3.6.
Update to a version after 3.5.
Update to a version after 3.4.
Update to a version after 3.3.
Update to a version after 3.0.
Exploit
Fix
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Ibm Aix
Linuxmint
Openssl
Red Os
Rocky Linux
Ubuntu