CVE-2019-14586 Use after free in Extensible Firmware Interface Development Kit (EDK II)
An authenticated attacker with adjacent access can exploit a use-after-free flaw in EDK II to escalate privileges, disclose information, or cause denial of service.
- 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-2019-14586?
CVE-2019-14586 is a high-severity use after free vulnerability in Debian Debian Linux, published on 23 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use after free vulnerability in EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via adjacent access.
Weakness: CWE-416
Which versions are affected by CVE-2019-14586?
It affects 2 products.
Products include Debian Debian Linux, Tianocore Edk2.
How do I fix CVE-2019-14586?
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-2019-14586 being exploited?
There is no known exploitation of CVE-2019-14586 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-14586, GHSA-ph92-fm2f-7w7p, UBUNTU-CVE-2019-14586.