CVE-2020-5753 Information disclosure in Signal Private Messenger
Remote attackers can disclose the victim's DNS server and ring their phone via ICE Candidate handling flaws in Signal mobile apps.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5753?
CVE-2020-5753 is a medium-severity vulnerability in Signal Private Messenger, published on 20 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote non-contact to ring a victim's Signal phone and disclose currently used DNS server due to ICE Candidate handling before call is answered or declined.
Weakness: CWE-670
Which versions are affected by CVE-2020-5753?
It affects 2 products.
Products include Signal Private Messenger, Signal Signal.
How do I fix CVE-2020-5753?
No fix has been published for CVE-2020-5753 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5753 being exploited?
There is no known exploitation of CVE-2020-5753 in the wild and no public exploit code.
Other vulnerabilities in Signal Private Messenger
Sources
Also known as GHSA-cqgm-mqmr-px3p.