Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package chrony (opens in a new tab)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-UBUNTU1804-CHRONY-627472
- published16 Apr 2015
- disclosed16 Apr 2015
Introduced: 16 Apr 2015
CVE-2015-1821 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream chrony package and not the chrony package as distributed by Ubuntu.
Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-1821
- http://www.debian.org/security/2015/dsa-3222
- https://security-tracker.debian.org/tracker/CVE-2015-1821
- https://security.gentoo.org/glsa/201507-01
- http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/73955
- https://access.redhat.com/errata/RHSA-2015:2241
- https://access.redhat.com/security/cve/CVE-2015-1821
- https://bugzilla.redhat.com/show_bug.cgi?id=1209631