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7.5
HIGH CVSS 3.1
CVE-2020-1983
libslirp: use after free vulnerability cause a denial of service.
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.

INFO

Published Date :

April 22, 2020, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:11 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2020-1983 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Fedoraproject fedora
1 Debian debian_linux
1 Opensuse leap
1 Libslirp_project libslirp
: Total Affected Vendor : 5 | Products : 5
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 LOW [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
This addresses a use-after-free vulnerability in libslirp affecting multiple products.
  • Update the affected packages to address the vulnerability.
  • Apply vendor-recommended installation methods or commands.
Public PoC/Exploit Available at Github

CVE-2020-1983 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-1983.

URL Resource
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/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
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/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
https://usn.ubuntu.com/4372-1/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4665 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-1983 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-1983 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
kang9693/PoC_cve_list

PoC_cve_list

Updated: 4 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Feb. 20, 2025, 7:03 a.m. This repo has been linked 18 different CVEs too.
Profile Photo
KRookieSec/WebSecurityStudy

WebSecurityStudy

Updated: 3 months, 3 weeks ago
16 stars 2 fork 2 watcher
Born at : April 26, 2023, 1:02 p.m. This repo has been linked 8 different CVEs too.
Profile Photo
hectorgie/PoC-in-GitHub

None

Updated: 7 months ago
18 stars 10 fork 10 watcher
Born at : Jan. 2, 2021, 10:19 p.m. This repo has been linked 1053 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-1983 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2020-1983 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html
    Added Reference https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04
    Added Reference https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
    Added Reference https://usn.ubuntu.com/4372-1/
    Added Reference https://www.debian.org/security/2020/dsa-4665
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ [No types assigned]
    Added Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ [No types assigned]
    Removed Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/
    Removed Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/
  • Modified Analysis by [email protected]

    Jan. 27, 2023

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ Mailing List, Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/4372-1/ No Types Assigned https://usn.ubuntu.com/4372-1/ Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  • CVE Modified by [email protected]

    Jul. 26, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 29, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 02, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.html [No Types Assigned]
  • CVE Modified by [email protected]

    May. 28, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4372-1/ [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 28, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4665 No Types Assigned https://www.debian.org/security/2020/dsa-4665 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 11, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.html [No Types Assigned]
  • CVE Modified by [email protected]

    May. 09, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/ [No Types Assigned]
  • CVE Modified by [email protected]

    May. 01, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/ [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 28, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4665 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 27, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04 No Types Assigned https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04 Patch, Third Party Advisory
    Changed Reference Type https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20 No Types Assigned https://gitlab.freedesktop.org/slirp/libslirp/-/issues/20 Exploit, Third Party Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:* versions up to (including) 4.2.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 2.1
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} 0.04%

score

0.40610

percentile