CVE-2020-1983
Moderate
CVE-2020-1983
A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.
Exploit probability
2.3%
Published
April 22, 2020
Required by
Not available
Last source change
August 7, 2026
02 / AFFECTED SOFTWARE
Affected packages
219 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2020-1983
View original source
A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.
05 / REFERENCES
Further evidence
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
- https://usn.ubuntu.com/4372-1/
- https://www.debian.org/security/2020/dsa-4665