CVE-2020-29129 Memory corruption in n/a
A buffer over-read in libslirp allows attackers to cause denial of service or disclose sensitive memory contents via crafted network packets.
- 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-2020-29129?
CVE-2020-29129 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 26 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.
Weakness: CWE-125
Which versions are affected by CVE-2020-29129?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Libslirp Project Libslirp.
How do I fix CVE-2020-29129?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-29129 being exploited?
There is no known exploitation of CVE-2020-29129 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-29129, UBUNTU-CVE-2020-29129.