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CVE-2012-4503

5.0 · MEDIUM

cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to (1) an invalid subnet in a RPY_SUBNETS_ACCESSED command t…

Published Nov 5, 2013tuxfamilyCWE-200EPSS 3.08%

Overview

CVE-2012-4503 is a medium-severity vulnerability affecting tuxfamily chrony. It was published on November 5, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to (1) an invalid subnet in a RPY_SUBNETS_ACCESSED command to the handle_subnets_accessed function or (2) a RPY_CLIENT_ACCESSES command to the handle_client_accesses function when client logging is disabled, which causes uninitialized data to be included in a reply.

Remediation

Check the references section for vendor advisories and patches from tuxfamily. Update chrony 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
tuxfamilychrony0Affected

References

Refgit.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3Refpermalink.gmane.org/gmane.comp.time.chrony.announce/15Refseclists.org/oss-sec/2013/q3/332Refwww.debian.org/security/2013/dsa-2760Refbugzilla.redhat.com/show_bug.cgi?id=846392Refgit.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3Refpermalink.gmane.org/gmane.comp.time.chrony.announce/15Refseclists.org/oss-sec/2013/q3/332Refwww.debian.org/security/2013/dsa-2760Refbugzilla.redhat.com/show_bug.cgi?id=846392

How CyberStrike helps

Frequently asked questions

What is CVE-2012-4503?

CVE-2012-4503 is a medium-severity vulnerability affecting tuxfamily chrony. It was published on November 5, 2013 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2012-4503?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2012-4503?

Check the references section for vendor advisories and patches from tuxfamily. Update chrony 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-2012-4503?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-4503 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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