CVE-2020-28638 Weak cryptography in n/a
Tomb may encrypt files with a predictable warning string as the key when pinentry-curses is used with a display, allowing unauthorized data access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-28638?
CVE-2020-28638 is a critical vulnerability in n/a, published on 13 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ask_password in Tomb 2.0 through 2.7 returns a warning when pinentry-curses is used and $DISPLAY is non-empty, causing affected users' files to be encrypted with "tomb {W] Detected DISPLAY, but only pinentry-curses is found." as the encryption key.
Weakness: CWE-287
Which versions are affected by CVE-2020-28638?
It affects 1 product.
Products include Dyne Tomb.
How do I fix CVE-2020-28638?
Upgrade to a fixed version.
Is CVE-2020-28638 being exploited?
There is no known exploitation of CVE-2020-28638 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-28638, GHSA-7796-9c37-q364, UBUNTU-CVE-2020-28638.