VulnerabilityModified
CVE-2020-6805
When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash.
HIGH 8.8EPSS 1.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
- 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
- 1.28% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird · canonical/ubuntu linux
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1610880Issue Tracking, Permissions Required, Third Party Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1610880Issue Tracking, Permissions Required, Third Party Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.