CVE-2012-4503 Information disclosure in n/a

Medium 5.0 Published Updated

Remote attackers can read sensitive stack memory via malformed Chrony commands, potentially exposing internal data without authentication.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-4503?

CVE-2012-4503 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

cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to (1) an invalid subnet in a RPY_SUBNETS_ACCESSED command to the handle_subnets_accessed function or (2) a RPY_CLIENT_ACCESSES command to the handle_client_accesses function when client logging is disabled, which causes uninitialized data to be included in a reply.

Weakness: CWE-200

Which versions are affected by CVE-2012-4503?

It affects 1 product.

Products include Tuxfamily Chrony.

How do I fix CVE-2012-4503?

Upgrade to a fixed version.

Is CVE-2012-4503 being exploited?

There is no known exploitation of CVE-2012-4503 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2012-4503, GHSA-53c9-c34f-h6w7.

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