Information Exposure The advisory has been revoked - it doesn't affect any version of package chrony (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1710-CHRONY-642637
- published10 Sept 2020
- disclosed5 Nov 2013
Introduced: 5 Nov 2013
CVE-2012-4503 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:17.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream chrony package and not the chrony package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2012-4503
- http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git;a=commitdiff;h=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3
- https://bugzilla.redhat.com/show_bug.cgi?id=846392
- http://www.debian.org/security/2013/dsa-2760
- http://permalink.gmane.org/gmane.comp.time.chrony.announce/15
- http://seclists.org/oss-sec/2013/q3/332
- http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3