High severity · published Jul 9, 2020
CVE-2020-12422
In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and…
8.8
CVSS
1.9%
EPSS
No
On KEV
Description
In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 78.0 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12422
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12422
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1450353
Third Party Advisory
https://security.gentoo.org/glsa/202007-10
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/
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