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Status published
High
CVE-2020-1983
libslirp: use after free vulnerability cause a denial of service.
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was discovered by Aviv Sasson of Palo Alto Networks.
References
- https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
- https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
- https://www.debian.org/security/2020/dsa-4665
- 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/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
- https://usn.ubuntu.com/4372-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
Affected Vendor
slirp
View all reports →Affected Software
libslirp
Vulnerable Versions:
unspecified
Timeline
Official Publish:
April 22nd, 2020
Last Modified:
September 16th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H