CVE-2007-1734
Linux Kernel 2.6.20 and later - Denial of Service via DCCP Getsockopt Optlen Bounds Check
Title source: llmExploitation Summary
EIP tracks 2 public exploits for CVE-2007-1734. PoCs published by Robert Swiecki.
AI-analyzed exploit summary This exploit targets a kernel memory leak vulnerability in the DCCP (Datagram Congestion Control Protocol) implementation in Linux kernels before 2.6.20.2. It uses a crafted `getsockopt` call to leak kernel memory contents to user space.
Description
The DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later does not verify the upper bounds of the optlen value, which allows local users running on certain architectures to read kernel memory or cause a denial of service (oops), a related issue to CVE-2007-1730.
Exploits (2)
This exploit targets a kernel memory leak vulnerability in the DCCP (Datagram Congestion Control Protocol) implementation in Linux kernels before 2.6.20.2. It uses a crafted `getsockopt` call to leak kernel memory contents to user space.
This exploit leverages a flaw in the Linux kernel's DCCP implementation where a negative length value bypasses validation, leading to kernel memory disclosure via getsockopt. It works on x86-64 architectures but causes a kernel oops on IA-32.