Medium severity · published Apr 22, 2020
CVE-2020-1983
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
6.5
CVSS
2.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
LI
Libslirp · Libslirp Project
through 4.2.0 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 19.10; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-1983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-1983
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
Patch
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
Exploit
https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
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