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
0.002 Low
EPSS
Percentile
59.1%
Mozilla developers reported memory safety bugs present in Firefox 92 and
Firefox ESR 91.1. 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 Firefox < 93,
Thunderbird < 91.2, and Firefox ESR < 91.2.
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | firefox | < 93.0+build1-0ubuntu0.18.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | firefox | < 93.0+build1-0ubuntu0.20.04.1 | UNKNOWN |
ubuntu | 21.04 | noarch | firefox | < 93.0+build1-0ubuntu0.21.04.1 | UNKNOWN |
ubuntu | 21.10 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 22.04 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 22.10 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 23.04 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 23.10 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 24.04 | noarch | firefox | < 93.0+build1-0ubuntu2 | UNKNOWN |
ubuntu | 18.04 | noarch | mozjs38 | < any | UNKNOWN |
launchpad.net/bugs/cve/CVE-2021-38501
nvd.nist.gov/vuln/detail/CVE-2021-38501
security-tracker.debian.org/tracker/CVE-2021-38501
ubuntu.com/security/notices/USN-5107-1
ubuntu.com/security/notices/USN-5132-1
ubuntu.com/security/notices/USN-5248-1
www.cve.org/CVERecord?id=CVE-2021-38501
www.mozilla.org/en-US/security/advisories/mfsa2021-43/#CVE-2021-38501
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
0.002 Low
EPSS
Percentile
59.1%