CVE-2020-1983

medium

Description

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.

References

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/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/

https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/

https://usn.ubuntu.com/4372-1/

https://www.debian.org/security/2020/dsa-4665

Details

Source: MITRE

Published: 2020-04-22

Updated: 2020-07-26

Type: CWE-416

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM