CVE-2021-29986
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
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.
Overview
- CVE ID
- CVE-2021-29986
- Assigner
- security@mozilla.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-17T20:15:07
- Last Modified Date
- 2022-12-09T19:17:08
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | 1 | OR | 91.0 | |
| cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | 1 | OR | 78.13.0 | |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | 1 | OR | 78.13.0 | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1696138 | Issue Tracking Permissions Required Vendor Advisory |
| https://security.gentoo.org/glsa/202202-03 | Third Party Advisory |
| https://security.gentoo.org/glsa/202208-14 | |
| https://www.mozilla.org/security/advisories/mfsa2021-33/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-34/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-35/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-36/ | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-29986 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29986 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:45:45 | Added to TrackCVE | |||
| 2022-12-05 08:26:08 | 2021-08-17T20:15Z | 2021-08-17T20:15:07 | CVE Published Date | updated |
| 2022-12-05 08:26:08 | 2022-08-10T20:15:19 | CVE Modified Date | updated | |
| 2022-12-05 08:26:08 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-05 08:26:13 | References | updated | ||
| 2022-12-09 20:13:54 | 2022-12-09T19:17:08 | CVE Modified Date | updated | |
| 2022-12-09 20:13:54 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |