| Name | CVE-2022-3996 |
| Description | If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466. |
| 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 | 1027102 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openssl (PTS) | buster | 1.1.1n-0+deb10u3 | fixed |
| buster (security) | 1.1.1n-0+deb10u6 | fixed |
| bullseye | 1.1.1w-0+deb11u1 | fixed |
| bullseye (security) | 1.1.1n-0+deb11u5 | fixed |
| bookworm, bookworm (security) | 3.0.11-1~deb12u2 | fixed |
| sid, trixie | 3.2.1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| openssl | source | buster | (not affected) | | | |
| openssl | source | bullseye | (not affected) | | | |
| openssl | source | (unstable) | 3.0.7-2 | | | 1027102 |
Notes
[bullseye] - openssl <not-affected> (Only affects 3.0.x)
[buster] - openssl <not-affected> (Only affects 3.0.x)
https://www.openssl.org/news/secadv/20221213.txt
https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=7725e7bfe6f2ce8146b6552b44e0d226be7638e7