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  3. Linux-HA Heartbeat Remote Buffer Overflow Vulnerability

Linux-HA Heartbeat Remote Buffer Overflow Vulnerability

Risk

High

Date Discovered

October 14, 2002

Description

The Linux-HA heartbeat utility is vulnerable to a remotely exploitable buffer overflow condition. Attackers may exploit the vulnerability to execute arbitrary code. It has been reported that the condition is related to the handling of TCP packets.

Technologies Affected

  • Linux-HA heartbeat 0.4.9
  • Linux-HA heartbeat 0.4.9 .1
  • Linux-HA heartbeat 0.4.9 a
  • Linux-HA heartbeat 0.4.9 b
  • Linux-HA heartbeat 0.4.9 c
  • Linux-HA heartbeat 0.9.4 d

Recommendations

Block external access at the network boundary, unless external parties require service.

Access to interfaces/ports used by heartbeat should be blocked.
The vulnerability is eliminated in versions 0.4.9.2 and 0.4.9e. Debian has released patches. Conectiva has released patches.

References

Credits

Discovered by Nathan Wallwork.
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Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
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