Description
Integer signedness error in the DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later allows local users to read kernel memory or cause a denial of service (oops) via a negative optlen value.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- Linux Kernel 2.6.20 with DCCP Support - Memory Disclosure (2) EDB-3595 · local · Mar 28, 2007 · verified
- Linux Kernel 2.6.20 with DCCP Support - Memory Disclosure (1) EDB-3587 · local · Mar 27, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- ADV-2007-1143 vdb-entry
- USN-464-1 vendor-advisory
- 2482 third-party-advisory
- 23162 vdb-entry
- [dccp] 20070328 [PATCH 1/1] getsockopt: Fix DCCP_SOCKOPT_[SEND,RECV]_CSCOV mailing-list
- 20070327 Linux Kernel DCCP Memory Disclosure Vulnerability mailing-list
- 1017820 vdb-entry
- 25392 third-party-advisory
- 20070329 Re: Re: [Full-disclosure] Linux Kernel DCCP Memory Disclosure Vulnerability mailing-list
- kernel-dccp-information-disclosure(33274) vdb-entry