Vulnerability · Published Mar 6, 2024 · Assigned by redhat
CVE-2024-2236Libgcrypt: vulnerable to marvin attack
Medium 5.9
In plain English
A medium-severity security flaw in libgcrypt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)1.1%top 33.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | libgcrypt | 1.10.0-11.el9 | ALSA-2024:9404 |
| AlmaLinux:9 | libgcrypt-devel | 1.10.0-11.el9 | ALSA-2024:9404 |
| Debian:12 | libgcrypt20 | no fix listed | DEBIAN-CVE-2024-2236 |
| Debian:13 | libgcrypt20 | no fix listed | DEBIAN-CVE-2024-2236 |
| Debian:14 | libgcrypt20 | no fix listed | DEBIAN-CVE-2024-2236 |
| Rocky Linux:9 | libgcrypt | 0:1.10.0-11.el9 | RLSA-2024:9404 |
| Ubuntu:22.04:LTS | libgcrypt20 | 1.9.4-3ubuntu3.3 | USN-8711-1 |
| Ubuntu:22.04:LTS | libgcrypt20 | 1.9.4-3ubuntu3.3 | UBUNTU-CVE-2024-2236 |
| Ubuntu:24.04:LTS | libgcrypt20 | 1.10.3-2ubuntu0.2 | USN-8711-1 |
| Ubuntu:24.04:LTS | libgcrypt20 | 1.10.3-2ubuntu0.2 | UBUNTU-CVE-2024-2236 |
| Ubuntu:25.10 | libgcrypt20 | no fix listed | UBUNTU-CVE-2024-2236 |
| Ubuntu:26.04:LTS | libgcrypt20 | 1.12.0-2ubuntu1.1 | UBUNTU-CVE-2024-2236 |
| Ubuntu:26.04:LTS | libgcrypt20 | 1.12.0-2ubuntu1.1 | USN-8711-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| libgcrypt | 0 – before 9.4.0 | |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | see references |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | see references |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
Weakness: CWE-385 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- RHSA-2024:9404 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:3530 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:3534 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-2236 vdb-entry, x_refsource_REDHAT
- RHBZ#2245218 issue-tracking, x_refsource_REDHAT
- RHBZ#2268268 issue-tracking, x_refsource_REDHAT, x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html