Ubuntu.comUB:CVE-2021-38500CVE-2021-38500
CVSS2
Attack Vector
NETWORK
Attack 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
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
EPSS
Percentile
58.5%
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 Thunderbird <
78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and
Firefox < 93.
Notes
| 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 |
References
launchpad.net/bugs/cve/CVE-2021-38500
nvd.nist.gov/vuln/detail/CVE-2021-38500
security-tracker.debian.org/tracker/CVE-2021-38500
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-2021-38500
www.mozilla.org/en-US/security/advisories/mfsa2021-43/#CVE-2021-38500
Related
CVSS2
Attack Vector
NETWORK
Attack 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
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
EPSS
Percentile
58.5%