CVE-2022-2526
CVE-2022-2526
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
CVSS 9.8 · Critical · EPSS 1.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
systemd-resolved
- Versions
- systemd 240: Affected
No fix published
systemd Debian:12
- Affected ranges
- ECOSYSTEM: < 240-1
Update to 240-1
systemd Debian:13
- Affected ranges
- ECOSYSTEM: < 240-1
Update to 240-1
systemd Debian:14
- Affected ranges
- ECOSYSTEM: < 240-1
Update to 240-1
systemd Ubuntu:18.04:LTS
- Versions
- 234-2ubuntu12
- 235-2ubuntu3
- 235-3ubuntu2
- 235-3ubuntu3
- 237-3ubuntu3
- 237-3ubuntu4
- 237-3ubuntu6
- 237-3ubuntu7
- 237-3ubuntu8
- 237-3ubuntu10
- 237-3ubuntu10.2
- 237-3ubuntu10.3
- 237-3ubuntu10.4
- 237-3ubuntu10.6
- 237-3ubuntu10.9
- 237-3ubuntu10.11
- 237-3ubuntu10.12
- 237-3ubuntu10.13
- 237-3ubuntu10.15
- 237-3ubuntu10.17
- 237-3ubuntu10.19
- 237-3ubuntu10.20
- 237-3ubuntu10.21
- 237-3ubuntu10.22
- 237-3ubuntu10.23
- 237-3ubuntu10.24
- 237-3ubuntu10.25
- 237-3ubuntu10.26
- 237-3ubuntu10.28
- 237-3ubuntu10.29
- 237-3ubuntu10.31
- 237-3ubuntu10.33
- 237-3ubuntu10.38
- 237-3ubuntu10.39
- 237-3ubuntu10.40
- 237-3ubuntu10.41
- 237-3ubuntu10.42
- 237-3ubuntu10.43
- 237-3ubuntu10.44
- 237-3ubuntu10.45
- 237-3ubuntu10.46
- 237-3ubuntu10.47
- 237-3ubuntu10.48
- 237-3ubuntu10.49
- 237-3ubuntu10.50
- 237-3ubuntu10.51
- 237-3ubuntu10.52
- 237-3ubuntu10.53
- Affected ranges
- ECOSYSTEM: < 237-3ubuntu10.54
Update to 237-3ubuntu10.54