Ubuntu.comUB:CVE-2021-29986CVE-2021-29986
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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
0.014 Low
EPSS
Percentile
86.4%
A suspected race condition when calling getaddrinfo led to memory
corruption and a potentially exploitable crash. Note: This issue only
affected Linux operating systems. Other operating systems are unaffected.
This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox
ESR < 78.13, and Firefox < 91.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | firefox | < 91.0+build2-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | firefox | < 91.0+build2-0ubuntu0.20.04.1 | UNKNOWN |
| ubuntu | 21.04 | noarch | firefox | < 91.0+build2-0ubuntu0.21.04.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | firefox | < 91.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 22.04 | noarch | firefox | < 91.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | firefox | < 91.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | firefox | < 91.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.10 | noarch | firefox | < 91.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 18.04 | noarch | mozjs38 | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | mozjs52 | < any | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2021-29986
nvd.nist.gov/vuln/detail/CVE-2021-29986
security-tracker.debian.org/tracker/CVE-2021-29986
ubuntu.com/security/notices/USN-5037-1
ubuntu.com/security/notices/USN-5058-1
www.cve.org/CVERecord?id=CVE-2021-29986
www.mozilla.org/en-US/security/advisories/mfsa2021-33/#CVE-2021-29986
www.mozilla.org/en-US/security/advisories/mfsa2021-34/#CVE-2021-29986
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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
0.014 Low
EPSS
Percentile
86.4%