CVE-2017-9445

systemd: Out-of-bounds write in systemd-resolved due to allocating too small buffer in dns_packet_new

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.0

Review impact separately from score.

Published · June 27, 2017

Updated · May 13, 2026

Description

An out-of-bounds write flaw was found in the way systemd-resolved daemon handled processing of DNS responses. A remote attacker could potentially use this flaw to crash the daemon or execute arbitrary code in the context of the daemon process.

Statement

This issue did not affect the versions of systemd as shipped with Red Hat Enterprise Linux 7.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-787 · Out-of-bounds Write