CVE-2005-0403 Use after free in n/a
Local attackers can trigger a use-after-free in the kernel's TTY handling to cause a crash or potentially gain terminal access.
- 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-2005-0403?
CVE-2005-0403 is a high-severity use after free vulnerability in Redhat Enterprise Linux, published on 1 Sep 2005. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
init_dev in tty_io.c in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 does not properly clear controlling tty's in multi-threaded applications, which allows local users to cause a denial of service (crash) and possibly gain tty access via unknown attack vectors that trigger an access of a pointer to a freed structure.
Which versions are affected by CVE-2005-0403?
It affects 2 products.
Products include Redhat Enterprise Linux, Redhat Enterprise Linux Desktop.
How do I fix CVE-2005-0403?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2005-0403 being exploited?
There is no known exploitation of CVE-2005-0403 in the wild and no public exploit code.
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Sources
Also known as GHSA-h877-2mwm-jwf4.