CVE-2022-2526

Published: Sep 9, 2022Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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.

Affected (6)

Products: Systemd Project: Systemd · Netapp: Active Iq Unified Manager, H300s Firmware, H500s Firmware, H700s Firmware, H410s Firmware

Systemd Project

1 product

Systemd

Netapp

5 products

Active Iq Unified Manager

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Systemd Project Systemd	Version 240

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Netapp Active Iq Unified Manager	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H300s Firmware	All versions

Running on/with	Platform Versions
Netapp H300s	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H500s Firmware	All versions

Running on/with	Platform Versions
Netapp H500s	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H700s Firmware	All versions

Running on/with	Platform Versions
Netapp H700s	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H410s Firmware	All versions

Running on/with	Platform Versions
Netapp H410s	All versions

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c

Source: secalert@redhat.com

PatchThird Party Advisory

https://security.netapp.com/advisory/ntap-20221111-0005/

Source: secalert@redhat.com

Third Party Advisory

https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://security.netapp.com/advisory/ntap-20221111-0005/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.