Ubuntu.comUB:CVE-2021-29967CVE-2021-29967
6.8 Medium
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
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
0.003 Low
EPSS
Percentile
68.8%
Mozilla developers reported memory safety bugs present in Firefox 88 and
Firefox ESR 78.11. 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 <
78.11, Firefox < 89, and Firefox ESR < 78.11.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | firefox | < 89.0+build2-0ubuntu0.18.04.2 | UNKNOWN |
| ubuntu | 20.04 | noarch | firefox | < 89.0+build2-0ubuntu0.20.04.2 | UNKNOWN |
| ubuntu | 20.10 | noarch | firefox | < 89.0+build2-0ubuntu0.20.10.1 | UNKNOWN |
| ubuntu | 21.04 | noarch | firefox | < 89.0+build2-0ubuntu0.21.04.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 22.04 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.10 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 24.04 | noarch | firefox | < 89.0+build2-0ubuntu1 | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2021-29967
nvd.nist.gov/vuln/detail/CVE-2021-29967
security-tracker.debian.org/tracker/CVE-2021-29967
ubuntu.com/security/notices/USN-4978-1
ubuntu.com/security/notices/USN-4995-1
ubuntu.com/security/notices/USN-4995-2
www.cve.org/CVERecord?id=CVE-2021-29967
www.mozilla.org/en-US/security/advisories/mfsa2021-23/#CVE-2021-29967
www.mozilla.org/en-US/security/advisories/mfsa2021-26/#CVE-2021-29967
Related
6.8 Medium
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
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
0.003 Low
EPSS
Percentile
68.8%