CVE-2021-41193 Use of Externally-Controlled Format String in wire-avs
A remote format string vulnerability in the Wire AVS library allows attackers to cause denial of service or execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41193?
CVE-2021-41193 is a critical vulnerability in wireapp wire-avs, published on 1 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
wire-avs is the audio visual signaling (AVS) component of Wire, an open-source messenger. A remote format string vulnerability in versions prior to 7.1.12 allows an attacker to cause a denial of service or possibly execute arbitrary code. The issue has been fixed in wire-avs 7.1.12. There are currently no known workarounds.
Weakness: CWE-134
Which versions are affected by CVE-2021-41193?
2 open source packages ship an affected version, including com.wire:avs. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.wire:avs Maven | All versions | 7.1.12 |
com.wire:avs Maven | All versions | 7.1.12 |
Products include Wire Wire-Audio Video Signaling.
How do I fix CVE-2021-41193?
Upgrade com.wire:avs to 7.1.12 or later.
Is CVE-2021-41193 being exploited?
There is no known exploitation of CVE-2021-41193 in the wild and no public exploit code.
Sources
Also known as GHSA-2j6v-xpf3-xvrv.