Vulnerability · Published Apr 24, 2020 · Assigned by mozilla
CVE-2020-6825
Critical 9.8
In plain English
A critical-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 2.2% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs present in Firefox 74 and Firefox ESR 68.6. 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 Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.21 | firefox | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.22 | firefox | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.23 | firefox | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.20 | firefox-esr | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.21 | firefox-esr | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.22 | firefox-esr | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.23 | firefox-esr | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.21 | librewolf | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.22 | librewolf | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.23 | librewolf | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.24 | librewolf | 75.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.20 | thunderbird | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.21 | thunderbird | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.22 | thunderbird | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Alpine:v3.23 | thunderbird | 68.7.0-r0 | ALPINE-CVE-2020-6825 |
| Debian:12 | firefox-esr | 68.7.0esr-1 | DEBIAN-CVE-2020-6825 |
| Debian:13 | firefox-esr | 68.7.0esr-1 | DEBIAN-CVE-2020-6825 |
| Debian:14 | firefox-esr | 68.7.0esr-1 | DEBIAN-CVE-2020-6825 |
| Debian:12 | thunderbird | 1:68.7.0-1 | DEBIAN-CVE-2020-6825 |
| Debian:13 | thunderbird | 1:68.7.0-1 | DEBIAN-CVE-2020-6825 |
| Debian:14 | thunderbird | 1:68.7.0-1 | DEBIAN-CVE-2020-6825 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 68.7.0 |
| Mozilla | Firefox ESR | unspecified – before 68.7 |
| Mozilla | Firefox | unspecified – before 75 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-13/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-12/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-14/ x_refsource_MISC
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1572541%2C1620193%2C1620203 x_refsource_MISC
- USN-4335-1 vendor-advisory, x_refsource_UBUNTU