CVE-2020-15710 Potential double-free in pulseaudio
A local attacker can trigger a double-free in PulseAudio's Bluetooth module, causing a crash or memory leak.
- 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-2020-15710?
CVE-2020-15710 is a medium-severity use after free vulnerability in Canonical PulseAudio, published on 19 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Potential double free in Bluez 5 module of PulseAudio could allow a local attacker to leak memory or crash the program. The modargs variable may be freed twice in the fail condition in src/modules/bluetooth/module-bluez5-device.c and src/modules/bluetooth/module-bluez5-device.c. Fixed in 1:8.0-0ubuntu3.14.
Weakness: CWE-415
Which versions are affected by CVE-2020-15710?
It affects 1 product.
Products include Pulseaudio Project Pulseaudio.
How do I fix CVE-2020-15710?
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-2020-15710 being exploited?
There is no known exploitation of CVE-2020-15710 in the wild and no public exploit code.
Sources
Also known as GHSA-87cm-47xv-j472, UBUNTU-CVE-2020-15710, USN-4519-1.