Cyber Risks · Cisco Talos

Don’t read this post

Summary: Cisco Talos described CVE-2009-0692, a stack-based buffer overflow in ISC dhclient caused by a memcpy of the large subnet option in a DHCP ACK packet, which allows code execution and affects many Linux and BSD distributions. The write-up notes the flaw is local-network only, that distro patch and auto-update processes lag, and that VRT rules already cover it under GID 3 SID 15700.

What's compelling: An attacker on the same network segment - a hotel, airport, or conference Wi-Fi - can take over every unpatched Linux box that renews a DHCP lease, and the article's own authors expected many systems to stay vulnerable for a long time.

Read the original at Cisco Talos ↗

Topics
Malware
Mentions
CVE-2009-0692
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