CVE-2021-31873
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.
Overview
- CVE ID
- CVE-2021-31873
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-30T06:15:07
- Last Modified Date
- 2022-04-19T03:53:58
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:*:*:* | 1 | OR | 2.0.9 | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://kernel.org/pub/linux/libs/klibc/2.0/ | Release Notes Third Party Advisory |
| https://lists.zytor.com/archives/klibc/2021-April/004593.html | Mailing List Release Notes Third Party Advisory |
| https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=a31ae8c508fc8d1bca4f57e9f9f88127572d5202 | Patch Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/04/30/1 | Mailing List Release Notes Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-31873 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31873 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:41:31 | Added to TrackCVE | |||
| 2022-12-05 01:21:52 | 2021-04-30T06:15Z | 2021-04-30T06:15:07 | CVE Published Date | updated |
| 2022-12-05 01:21:52 | 2022-04-19T03:53:58 | CVE Modified Date | updated | |
| 2022-12-05 01:21:52 | Analyzed | Vulnerability Status | updated |