CVE-2022-2526

2022-09-0900:00:00

CWE-416

redhat

www.cve.org

systemd

vulnerability

use-after-free

resolved-dns-stream

9.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

59.7%

JSON

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.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "systemd-resolved",
    "versions": [
      {
        "version": "systemd 240",
        "status": "affected"
      }
    ]
  }
]