Numeric Errors Affecting chrony package, versions <1.29-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.32% (86th percentile)

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  • Snyk IDSNYK-DEBIAN12-CHRONY-1543632
  • published5 Nov 2013
  • disclosed5 Nov 2013

Introduced: 5 Nov 2013

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

How to fix?

Upgrade Debian:12 chrony to version 1.29-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream chrony package and not the chrony package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Scores

version 3.1