| Name | CVE-2024-2236 |
| Description | A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1065683 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libgcrypt20 (PTS) | buster | 1.8.4-5+deb10u1 | vulnerable |
| bullseye | 1.8.7-6 | vulnerable |
| bookworm | 1.10.1-3 | vulnerable |
| trixie, sid | 1.10.3-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libgcrypt20 | source | (unstable) | (unfixed) | | | 1065683 |
Notes
[bookworm] - libgcrypt20 <no-dsa> (Minor issue)
[bullseye] - libgcrypt20 <no-dsa> (Minor issue)
[buster] - libgcrypt20 <postponed> (Minor issue; side-channel timing attack)
https://bugzilla.redhat.com/show_bug.cgi?id=2268268
https://lists.gnupg.org/pipermail/gcrypt-devel/2024-March/005607.html
https://github.com/tomato42/marvin-toolkit/tree/master/example/libgcrypt
https://people.redhat.com/~hkario/marvin/