CVE-2010-4258 Privilege escalation in n/a
Local attackers can exploit improper KERNEL_DS handling in the Linux kernel to overwrite memory and gain elevated privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2010-4258?
CVE-2010-4258 is a medium-severity vulnerability in Fedoraproject Fedora, published on 30 Dec 2010. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.
Weakness: CWE-269
Which versions are affected by CVE-2010-4258?
It affects 7 products.
Products include Fedoraproject Fedora, Linux kernel, Opensuse Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Server and 1 more.
How do I fix CVE-2010-4258?
Upgrade to a fixed version.
Is CVE-2010-4258 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-4258 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-vj6j-hh8w-8qxh.