CVE-2024-2236

Publication date 6 March 2024

Last updated 19 September 2024

Ubuntu priority

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libgcrypt11	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	22.04 LTS jammy	Not in release
	20.04 LTS focal	Not in release
	14.04 LTS trusty	Vulnerable, fix deferred
libgcrypt20	24.04 LTS noble	Vulnerable, fix deferred
	23.10 mantic	Ignored
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred

How can I get the fixes?
What do statuses mean?

Notes

mdeslaur

No upstream fix for this issue as of 2024-09-19

References

MITRE
NVD
Launchpad
Debian

Other references

https://access.redhat.com/security/cve/CVE-2024-2236
https://lists.gnupg.org/pipermail/gcrypt-devel/2024-March/005607.html
https://github.com/tomato42/marvin-toolkit/tree/master/example/libgcrypt
https://dev.gnupg.org/T7136
https://www.cve.org/CVERecord?id=CVE-2024-2236
https://gitlab.com/redhat-crypto/libgcrypt/libgcrypt-mirror/-/merge_requests/17