CVE-2013-4391

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-10-28 · updated 2026-06-16
Weakness: CWE-190

Description

Integer overflow in the valid_user_field function in journal/journald-native.c in systemd allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large journal data field, which triggers a heap-based buffer overflow.

Affected products

Debian Linux: 7.0
systemd: before 190 — fixed in 190

How to fix

Upgrade to a fixed version: systemd 190. Check the vendor advisory for mitigations.

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357
http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e
http://www.debian.org/security/2013/dsa-2777
http://www.openwall.com/lists/oss-security/2013/10/01/9
https://bugzilla.redhat.com/show_bug.cgi?id=859051
https://security.gentoo.org/glsa/201612-34
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357
http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e
http://www.debian.org/security/2013/dsa-2777
http://www.openwall.com/lists/oss-security/2013/10/01/9
https://bugzilla.redhat.com/show_bug.cgi?id=859051
https://security.gentoo.org/glsa/201612-34

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