CVE-2022-39170 Use after free in n/a
A double free vulnerability in libdwarf allows attackers to cause denial of service or potentially execute arbitrary code via crafted DWARF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-39170?
CVE-2022-39170 is a high-severity use after free vulnerability in Fedoraproject Fedora, published on 2 Sep 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
libdwarf 0.4.1 has a double free in _dwarf_exec_frame_instr in dwarf_frame.c.
Weakness: CWE-415
Which versions are affected by CVE-2022-39170?
It affects 2 products.
Products include Fedoraproject Fedora, Libdwarf Project Libdwarf.
How do I fix CVE-2022-39170?
No fix has been published for CVE-2022-39170 yet. Limit exposure of the affected software until one is available.
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-2022-39170 being exploited?
There is no known exploitation of CVE-2022-39170 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-q3xx-pg8c-jqh6.