Ubuntu.comUB:CVE-2020-6822CVE-2020-6822
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
69.7%
On 32-bit builds, an out of bounds write could have occurred when
processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is
possible that with enough effort this could have been exploited to run
arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox
ESR < 68.7, and Firefox < 75.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | firefox | < 75.0+build3-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 19.10 | noarch | firefox | < 75.0+build3-0ubuntu0.19.10.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 20.10 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 21.04 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 21.10 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 22.04 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
| ubuntu | 23.10 | noarch | firefox | < 75.0+build3-0ubuntu1 | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2020-6822
nvd.nist.gov/vuln/detail/CVE-2020-6822
security-tracker.debian.org/tracker/CVE-2020-6822
ubuntu.com/security/notices/USN-4323-1
ubuntu.com/security/notices/USN-4328-1
ubuntu.com/security/notices/USN-4335-1
www.cve.org/CVERecord?id=CVE-2020-6822
www.mozilla.org/en-US/security/advisories/mfsa2020-12/#CVE-2020-6822
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
69.7%