CVE-2024-2236: Libgcrypt: vulnerable to marvin attack
First published: Fri Oct 20 2023(Updated: )
A timing based side-channel exists in the libgcrypt RSA implementation which could be sufficient to recover a 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 for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OAEP, and RSASVE.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Libgcrypt |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268271
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268272
- https://bugzilla.redhat.com/show_bug.cgi?id=2268268
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268268
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274128
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274129
- https://dev.gnupg.org/T7136
- https://gitlab.com/redhat-crypto/libgcrypt/libgcrypt-mirror/-/merge_requests/19
- https://bugzilla.redhat.com/show_bug.cgi?id=2245218
- https://access.redhat.com/security/cve/CVE-2024-2236
- https://access.redhat.com/errata/RHSA-2024:9404
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- vendor/gnu
- canonical/gnu libgcrypt