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VULNERABILITIES

CVE-2012-4502 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1 CVE
http://permalink.gmane.org/gmane.comp.time.chrony.announce/15 CVEPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=846392 CVEPatch
http://seclists.org/oss-sec/2013/q3/332 CVEPatch
http://www.debian.org/security/2013/dsa-2760 CVE

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-189Numeric Errors[email protected]

Affected Products

ProductVersions
tuxfamily chrony
<= 1.28
1.0
1.1
1.18
1.19

CPE

  • cpe:2.3:a:tuxfamily:chrony:*:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.18:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.2:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.3:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.20:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.21:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.21:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.24:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.24:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:pre2:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.26:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.26:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.27:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.27:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.28:pre1:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2012-4502
NVD Published Date:
Nov 5, 2013
NVD Last Modified:
Jun 16, 2026
Source:
[email protected]
CVE-2012-4502 Details - Not Deferred