Unscored severity · published Nov 5, 2013
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)…
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CVSS
3.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Chrony · Tuxfamily
through 1.28; 1.0; 1.1; 1.18; 1.19; 1.19.99.1; +18 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-4502
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-4502
git.tuxfamily.org
http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
Patch
http://permalink.gmane.org/gmane.comp.time.chrony.announce/15
Patch
http://seclists.org/oss-sec/2013/q3/332
www.debian.org
http://www.debian.org/security/2013/dsa-2760
Patch
https://bugzilla.redhat.com/show_bug.cgi?id=846392
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