VulnerabilityModified
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 a potentially exploitable crash.
HIGH 8.8EPSS 1.94%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.94% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mozilla/firefox · opensuse/leap
- Source
- security@mozilla.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1450353Issue Tracking, Vendor Advisory
- 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 List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1450353Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202007-10Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.