CVE-2021-3675 synaTEE.signed.dll Out-Of-Bounds Heap Write
A local attacker can exploit an out-of-bounds heap write in the Synaptics Fingerprint Driver to potentially compromise confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3675?
CVE-2021-3675 is a medium-severity memory corruption vulnerability in Synaptics Fingerprint Driver, published on 16 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper Input Validation vulnerability in synaTEE.signed.dll of Synaptics Fingerprint Driver allows a local authorized attacker to overwrite a heap tag, with potential loss of confidentiality. This issue affects: Synaptics Synaptics Fingerprint Driver 5.1.xxx.26 versions prior to xxx=340 on x86/64; 5.2.xxxx.26 versions prior to xxxx=3541 on x86/64; 5.2.2xx.26 versions prior to xx=29 on x86/64; 5.2.3xx.26 versions prior to xx=25 on x86/64; 5.3.xxxx.26 versions prior to xxxx=3543 on x86/64; 5.5.xx.1058 versions prior to xx=44 on x86/64; 5.5.xx.1102 versions prior to xx=34 on x86/64; 5.5.xx.1116 versions prior to xx=14 on x86/64; 6.0.xx.1104 versions prior to xx=50 on x86/64; 6.0.xx.1108 versions prior to xx=31 on x86/64; 6.0.xx.1111 versions prior to xx=58 on x86/64.
Which versions are affected by CVE-2021-3675?
It affects 1 product.
Products include Synaptics Fingerprint Driver.
How do I fix CVE-2021-3675?
No fix has been published for CVE-2021-3675 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-3675 being exploited?
There is no known exploitation of CVE-2021-3675 in the wild and no public exploit code.
Other vulnerabilities in Synaptics Fingerprint Driver
Sources
Also known as GHSA-mqp4-mr97-536g.