7.5

CVE-2020-1983

Exploit

libslirp: use after free vulnerability cause a denial of service.

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libslirp Project ≫ Libslirp Version <= 4.2.0
Fedoraproject ≫ Fedora Version31
Fedoraproject ≫ Fedora Version32
Debian ≫ Debian Linux Version8.0
Debian ≫ Debian Linux Version9.0
Opensuse ≫ Leap Version15.1
Canonical ≫ Ubuntu Linux Version16.04 SwEditionesm
Canonical ≫ Ubuntu Linux Version18.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version19.10
Canonical ≫ Ubuntu Linux Version20.04 SwEditionlts
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.29% 0.81
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 2 4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvd@nist.gov 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/A:P
psirt@paloaltonetworks.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
Third Party Advisory
Mailing List
https://www.debian.org/security/2020/dsa-4665
Third Party Advisory
https://usn.ubuntu.com/4372-1/
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
Third Party Advisory
Mailing List
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
Patch
Third Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
Third Party Advisory
Exploit
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
Third Party Advisory
Mailing List
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/