CVE-2012-4502

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 v2.0 5.0 MEDIUM

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
http://permalink.gmane.org/gmane.comp.time.chrony.announce/15	Patch Vendor Advisory
http://seclists.org/oss-sec/2013/q3/332	Patch
http://www.debian.org/security/2013/dsa-2760
https://bugzilla.redhat.com/show_bug.cgi?id=846392	Patch
http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
http://permalink.gmane.org/gmane.comp.time.chrony.announce/15	Patch Vendor Advisory
http://seclists.org/oss-sec/2013/q3/332	Patch
http://www.debian.org/security/2013/dsa-2760
https://bugzilla.redhat.com/show_bug.cgi?id=846392	Patch

Configurations

Configuration 1 (hide)

OR	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::::::

History

21 Nov 2024, 01:43

Type	Values Removed	Values Added
References	~~() http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1 -~~	() http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1 -
References	~~() http://permalink.gmane.org/gmane.comp.time.chrony.announce/15 - Patch, Vendor Advisory~~	() http://permalink.gmane.org/gmane.comp.time.chrony.announce/15 - Patch, Vendor Advisory
References	~~() http://seclists.org/oss-sec/2013/q3/332 - Patch~~	() http://seclists.org/oss-sec/2013/q3/332 - Patch
References	~~() http://www.debian.org/security/2013/dsa-2760 -~~	() http://www.debian.org/security/2013/dsa-2760 -
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=846392 - Patch~~	() https://bugzilla.redhat.com/show_bug.cgi?id=846392 - Patch

07 Nov 2023, 02:11

Type	Values Removed	Values Added
References	{'url': 'http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git;a=commitdiff;h=7712455d9aa33d0db0945effaa07e900b85987b1', 'name': 'http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git;a=commitdiff;h=7712455d9aa33d0db0945effaa07e900b85987b1', 'tags': ['Exploit', 'Patch'], 'refsource': 'CONFIRM'}	() http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1 -

Information

Published : 2013-11-05 21:55

Updated : 2025-04-11 00:51

NVD link : CVE-2012-4502

Mitre link : CVE-2012-4502

CVE.ORG link : CVE-2012-4502

JSON object : View

Products Affected

tuxfamily

chrony

CWE

CWE-189

Numeric Errors

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5.0 /10