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CVE-2013-4391

7.5 · HIGH

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 larg…

Published Oct 28, 2013systemd_projectCWE-190EPSS 5.44%

Overview

CVE-2013-4391 is a high-severity vulnerability affecting systemd_project systemd. It was published on October 28, 2013 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from systemd_project. Update systemd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
systemd_projectsystemd>= 0, < 190Affected

References

Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=725357Refcgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517eRefwww.debian.org/security/2013/dsa-2777Refwww.openwall.com/lists/oss-security/2013/10/01/9Refbugzilla.redhat.com/show_bug.cgi?id=859051Refsecurity.gentoo.org/glsa/201612-34Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=725357Refcgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517eRefwww.debian.org/security/2013/dsa-2777Refwww.openwall.com/lists/oss-security/2013/10/01/9

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4391?

CVE-2013-4391 is a high-severity vulnerability affecting systemd_project systemd. It was published on October 28, 2013 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2013-4391?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-4391?

Check the references section for vendor advisories and patches from systemd_project. Update systemd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-4391?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4391 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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