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Numeric Errors The advisory has been revoked - it doesn't affect any version of package chrony  (opens in a new tab)

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EPSS
3.24% (88th percentile)

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  • Snyk IDSNYK-UBUNTU1710-CHRONY-642640
  • published10 Sept 2020
  • disclosed5 Nov 2013
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Introduced: 5 Nov 2013

CVE-2012-4502  (opens in a new tab)
CWE-189  (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.

Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.