Signature Detail
Short Name |
DHCP:OPT:DHCPD-PKT-SIZE-BO |
|---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop |
Category |
DHCP |
Keywords |
Dhcpcd Packet Size Stack Buffer Overflow |
Release Date |
2013/01/08 |
Update Number |
2223 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
DHCP: Dhcpcd Packet Size Stack Buffer Overflow
This signature detects attempts to exploit a known vulnerability in dhcpcd. It is due to insufficient validation on packets size supplied by DHCP clients. A remote attacker impersonating a DHCP server on the adjacent network could exploit this by sending a crafted packet to the target host. Successful exploitation would allow an attacker to inject arbitrary code into the DHCP Client.
Extended Description
dhcpcd is prone to a remote stack-based buffer-overflow vulnerability because it fails to properly bounds-check user-supplied input before copying it into a fixed-length buffer. Successfully exploiting this issue allows a remote attacker to execute arbitrary code in the context of the application. Failed exploits will result in denial-of-service condition.
Affected Products
- Debian Linux 6.0 amd64
- Debian Linux 6.0 arm
- Debian Linux 6.0 ia-32
- Debian Linux 6.0 ia-64
- Debian Linux 6.0 mips
- Debian Linux 6.0 powerpc
- Debian Linux 6.0 s/390
- Debian Linux 6.0 sparc
- dhcpcd 3.2.3
References
- BugTraq: 53354
- CVE: CVE-2012-2152