CVEvulnerability
CVE-2020-1983
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-04-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-416
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.
Affected configurations
• libslirp project libslirp (<= 4.2.0)
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 8.0
• debian debian linux 9.0
• opensuse leap 15.1
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html Mailing List, Third Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04 Patch, Third Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ lists.fedoraproject.org
- https://usn.ubuntu.com/4372-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4665 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html Mailing List, Third Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04 Patch, Third Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ lists.fedoraproject.org
- https://usn.ubuntu.com/4372-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4665 Third Party Advisory