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7.5
HIGH CVSS 3.1
CVE-2020-1763
Libreswan Pluto Daemon Out-of-Bounds Buffer Read Vulnerability
Description

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

INFO

Published Date :

May 12, 2020, 2:15 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-2020-1763 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 Siemens ruggedcom_rox_mx5000_firmware
2 Siemens ruggedcom_rox_rx1400_firmware
3 Siemens ruggedcom_rox_rx1500_firmware
4 Siemens ruggedcom_rox_rx1501_firmware
5 Siemens ruggedcom_rox_rx1510_firmware
6 Siemens ruggedcom_rox_rx1511_firmware
7 Siemens ruggedcom_rox_rx1512_firmware
8 Siemens ruggedcom_rox_rx5000_firmware
1 Libreswan libreswan
: Total Affected Vendor : 2 | Products : 9
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 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
This vulnerability can be resolved by updating the affected Libreswan packages to the newest version.
  • Update the libreswan packages to the latest version.
  • If updated packages are unavailable, contact the vendor.
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-2020-1763.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1813329 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763 Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf Third Party Advisory
https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8 Patch Third Party Advisory
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt Patch Vendor Advisory
https://security.gentoo.org/glsa/202007-21 Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 Third Party Advisory US Government Resource
https://www.debian.org/security/2020/dsa-4684 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1813329 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763 Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf Third Party Advisory
https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8 Patch Third Party Advisory
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt Patch Vendor Advisory
https://security.gentoo.org/glsa/202007-21 Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 Third Party Advisory US Government Resource
https://www.debian.org/security/2020/dsa-4684 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-2020-1763 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-2020-1763 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).

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

The following list is the news that have been mention CVE-2020-1763 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-2020-1763 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 https://bugzilla.redhat.com/show_bug.cgi?id=1813329
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
    Added Reference https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8
    Added Reference https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt
    Added Reference https://security.gentoo.org/glsa/202007-21
    Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
    Added Reference https://www.debian.org/security/2020/dsa-4684
  • 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
    Removed CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Modified Analysis by [email protected]

    May. 05, 2021

    Action Type Old Value New Value
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202007-21 No Types Assigned https://security.gentoo.org/glsa/202007-21 Third Party Advisory
    Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 Third Party Advisory, US Government Resource
  • CVE Modified by [email protected]

    Feb. 12, 2021

    Action Type Old Value New Value
    Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 09, 2021

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 27, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202007-21 [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 14, 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://bugzilla.redhat.com/show_bug.cgi?id=1813329 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1813329 Issue Tracking, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763 Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8 No Types Assigned https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8 Patch, Third Party Advisory
    Changed Reference Type https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt No Types Assigned https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt Patch, Vendor Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4684 No Types Assigned https://www.debian.org/security/2020/dsa-4684 Third Party Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:* *cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:* versions from (including) 3.27 up to (including) 3.31
  • CVE Modified by [email protected]

    May. 14, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4684 [No Types Assigned]
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: 5
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.

4.76 }} 1.20%

score

0.88840

percentile