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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200608-23] Heartbeat: Denial of Service

Vulnerability Assessment Details

[GLSA-200608-23] Heartbeat: Denial of Service

Vulnerability Assessment Summary
Heartbeat: Denial of Service

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200608-23
(Heartbeat: Denial of Service)

Yan Rong Ge discovered that the peel_netstring() function in
cl_netstring.c does not validate the "length" parameter of user input,
which can lead to an out-of-bounds memory access when processing
certain Heartbeat messages (CVE-2006-3121). Furthermore an unspecified
local DoS issue was fixed (CVE-2006-3815).

Impact

By sending a malicious UDP Heartbeat message, even before
authentication, a remote attacker can crash the master control process
of the cluster.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3121
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3815

Solution:
All Heartbeat users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-cluster/heartbeat-2.0.7"

Network Security Threat Level: Medium

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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