CVE-2012-4502 Integer overflow in n/a
Remote attackers can cause a denial of service in Chrony via crafted command requests triggering integer overflows and buffer overflows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-4502?
CVE-2012-4502 is a medium-severity vulnerability in n/a, published on 5 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-189
Which versions are affected by CVE-2012-4502?
It affects 1 product.
Products include Tuxfamily Chrony.
How do I fix CVE-2012-4502?
Upgrade to a fixed version.
Is CVE-2012-4502 being exploited?
There is no known exploitation of CVE-2012-4502 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2012-4502, GHSA-93mp-m23x-f3x9.