CVE-2020-29074 Misconfiguration in n/a
An insecure shared memory permission setting in x11vnc allows local attackers to read or modify VNC session data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-29074?
CVE-2020-29074 is a high-severity vulnerability in Debian Debian Linux, published on 25 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
scan.c in x11vnc 0.9.16 uses IPC_CREAT|0777 in shmget calls, which allows access by actors other than the current user.
Weakness: CWE-732
Which versions are affected by CVE-2020-29074?
It affects 3 products.
Linux distribution packages (1)
veyon openSUSE:Tumbleweed | All versions | 4.6.0-1.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, X11vnc Project X11vnc.
How do I fix CVE-2020-29074?
Apply the vendor's patch.
Is CVE-2020-29074 being exploited?
There is no known exploitation of CVE-2020-29074 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as CVE-2020-27785, DEBIAN-CVE-2020-29074, DLA-2490-1, DSA-4799-1, GHSA-qjv2-p92g-q4wq, MGASA-2020-0454 and 2 more.