CVE-2020-12420

When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

CVSS v3 8.8 HIGH
CVSS v2.0 9.3 HIGH

8.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	Mailing List Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1643437	Exploit Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202007-09	Third Party Advisory
https://security.gentoo.org/glsa/202007-10	Third Party Advisory
https://usn.ubuntu.com/4421-1/	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-25/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-26/	Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	Mailing List Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1643437	Exploit Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202007-09	Third Party Advisory
https://security.gentoo.org/glsa/202007-10	Third Party Advisory
https://usn.ubuntu.com/4421-1/	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-25/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-26/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Configuration 2 (hide)

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:::

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:leap:15.2:::::::*

History

21 Nov 2024, 04:59

Type	Values Removed	Values Added
References	~~() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html - Mailing List, Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html - Mailing List, Third Party Advisory
References	~~() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html - Mailing List, Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html - Mailing List, Third Party Advisory
References	~~() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html - Mailing List, Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html - Mailing List, Third Party Advisory
References	~~() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html - Mailing List, Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html - Mailing List, Third Party Advisory
References	~~() https://bugzilla.mozilla.org/show_bug.cgi?id=1643437 - Exploit, Issue Tracking, Vendor Advisory~~	() https://bugzilla.mozilla.org/show_bug.cgi?id=1643437 - Exploit, Issue Tracking, Vendor Advisory
References	~~() https://security.gentoo.org/glsa/202007-09 - Third Party Advisory~~	() https://security.gentoo.org/glsa/202007-09 - Third Party Advisory
References	~~() https://security.gentoo.org/glsa/202007-10 - Third Party Advisory~~	() https://security.gentoo.org/glsa/202007-10 - Third Party Advisory
References	~~() https://usn.ubuntu.com/4421-1/ - Third Party Advisory~~	() https://usn.ubuntu.com/4421-1/ - Third Party Advisory
References	~~() https://www.mozilla.org/security/advisories/mfsa2020-24/ - Vendor Advisory~~	() https://www.mozilla.org/security/advisories/mfsa2020-24/ - Vendor Advisory
References	~~() https://www.mozilla.org/security/advisories/mfsa2020-25/ - Vendor Advisory~~	() https://www.mozilla.org/security/advisories/mfsa2020-25/ - Vendor Advisory
References	~~() https://www.mozilla.org/security/advisories/mfsa2020-26/ - Vendor Advisory~~	() https://www.mozilla.org/security/advisories/mfsa2020-26/ - Vendor Advisory

03 May 2022, 13:00

Type	Values Removed	Values Added
References	~~(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html -~~	(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html - Mailing List, Third Party Advisory
References	~~(GENTOO) https://security.gentoo.org/glsa/202007-10 -~~	(GENTOO) https://security.gentoo.org/glsa/202007-10 - Third Party Advisory
References	~~(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html -~~	(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html - Mailing List, Third Party Advisory
References	~~(MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1643437 - Issue Tracking, Permissions Required, Vendor Advisory~~	(MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1643437 - Exploit, Issue Tracking, Vendor Advisory
References	~~(UBUNTU) https://usn.ubuntu.com/4421-1/ -~~	(UBUNTU) https://usn.ubuntu.com/4421-1/ - Third Party Advisory
References	~~(GENTOO) https://security.gentoo.org/glsa/202007-09 -~~	(GENTOO) https://security.gentoo.org/glsa/202007-09 - Third Party Advisory
References	~~(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html -~~	(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html - Mailing List, Third Party Advisory
References	~~(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html -~~	(SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html - Mailing List, Third Party Advisory
CPE		cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm::: cpe:2.3:o:opensuse:leap:15.2:::::::* cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts::: cpe:2.3:o:opensuse:leap:15.1:::::::* cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
CWE		CWE-362

Information

Published : 2020-07-09 15:15

Updated : 2024-11-21 04:59

NVD link : CVE-2020-12420

Mitre link : CVE-2020-12420

CVE.ORG link : CVE-2020-12420

JSON object : View

Products Affected

opensuse

leap

canonical

ubuntu_linux

mozilla

thunderbird
firefox_esr
firefox

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-416

Use After Free

8.8 /10