Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libslirp Project | Libslirp | <= 4.2.0 |
| Fedoraproject | Fedora | 31 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 15.1 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.htmlMailing ListThird Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1cPatchThird Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://usn.ubuntu.com/4372-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4665Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.htmlMailing ListThird Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1cPatchThird Party Advisory
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-1983?
CVE-2020-1983 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2020-1983?
CVE-2020-1983 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-1983?
Check the references section above for vendor advisories and patch information. Affected products include: Libslirp Project Libslirp, Fedoraproject Fedora, Debian Debian Linux, Opensuse Leap, Canonical Ubuntu Linux.