Vulnerability · Published Mar 2, 2020 · Assigned by mozilla
CVE-2020-6800
High 8.8
In plain English
A high-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox-esr | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.21 | firefox-esr | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.22 | firefox-esr | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.23 | firefox-esr | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.20 | thunderbird | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.21 | thunderbird | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.22 | thunderbird | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Alpine:v3.23 | thunderbird | 68.5.0-r0 | ALPINE-CVE-2020-6800 |
| Debian:12 | firefox-esr | 68.5.0esr-1 | DEBIAN-CVE-2020-6800 |
| Debian:13 | firefox-esr | 68.5.0esr-1 | DEBIAN-CVE-2020-6800 |
| Debian:14 | firefox-esr | 68.5.0esr-1 | DEBIAN-CVE-2020-6800 |
| Debian:12 | thunderbird | 1:68.5.0-1 | DEBIAN-CVE-2020-6800 |
| Debian:13 | thunderbird | 1:68.5.0-1 | DEBIAN-CVE-2020-6800 |
| Debian:14 | thunderbird | 1:68.5.0-1 | DEBIAN-CVE-2020-6800 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 68.5 |
| Mozilla | Firefox | unspecified – before 73unspecified – before ESR68.5 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-05/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-06/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-07/ x_refsource_MISC
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595786%2C1596706%2C1598543%2C1604851%2C1608580%2C1608785%2C1605777 x_refsource_MISC
- USN-4278-2 vendor-advisory, x_refsource_UBUNTU
- GLSA-202003-02 vendor-advisory, x_refsource_GENTOO
- GLSA-202003-10 vendor-advisory, x_refsource_GENTOO
- USN-4328-1 vendor-advisory, x_refsource_UBUNTU
- USN-4335-1 vendor-advisory, x_refsource_UBUNTU