CVE-2020-12426 — HIGH (8.8)

Q: How severe is CVE-2020-12426?

CVE-2020-12426 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-12426?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Opensuse Leap.

Vulnerability Description

Mozilla developers and community members reported memory safety bugs present in Firefox 77. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 78.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mozilla	Firefox	< 78.0
Opensuse	Leap	15.1

Related Weaknesses (CWE)

CWE-787

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing ListThird Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1608068%2C1609951%2C1631187%2C16ExploitIssue TrackingPatch
https://security.gentoo.org/glsa/202007-10Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing ListThird Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1608068%2C1609951%2C1631187%2C16ExploitIssue TrackingPatch
https://security.gentoo.org/glsa/202007-10Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory

FAQ

What is CVE-2020-12426?

CVE-2020-12426 is a vulnerability with a CVSS score of 8.8 (HIGH). Mozilla developers and community members reported memory safety bugs present in Firefox 77. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these...

How severe is CVE-2020-12426?

CVE-2020-12426 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-12426?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Opensuse Leap.