Canonical
Ubuntu
Linux distribution for servers, desktops, and cloud workloads.
20.04.6
- Release date
- March 23, 2023
- CVE status
- 2 visible CVEs
Source
Public release notes are linked for the latest stored release.
Release history
See the latest published releases stored for this product.
| Version | Published | Notes |
|---|---|---|
| 20.04.6 | 2023-03-23 | Release Notes |
Vulnerability tracking
Review curated CVEs for this product and see whether the current version is marked affected. Only CVEs with a CVSS score of 7.0 or higher and published in the last 90 days are shown.
| CVE | Severity | Published | Status | Summary |
|---|---|---|---|---|
| CVE-2026-3888 | HIGH (7.8) | 2026-03-17 | Current versionaffected | Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS. Affected versions
|
| CVE-2025-13350 | HIGH (7.1) | 2026-03-05 | Current versionnot affected | Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 ("af_unix: Don’t call skb_get() for OOB skb"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84. Affected versions
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