#VU27389 Use-after-free in libslirp - CVE-2020-1983
Published: April 28, 2020 / Updated: November 3, 2020
Vulnerability identifier: #VU27389
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-1983
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
libslirp
libslirp
Software vendor:
Freedesktop.org
Freedesktop.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error when processing packets within the ip_reass() function in ip_input.c in libslirp. A remote attacker can send a specially crafted packet to the application, trigger a use-after-free error and crash it.
Remediation
Install updates from vendor's website.