CVE-2021-43845
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.
Overview
- CVE ID
- CVE-2021-43845
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-27T18:15:07
- Last Modified Date
- 2023-01-27T19:56:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* | 1 | OR | 2.11.1 | |
| 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:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/pjsip/pjproject/commit/f74c1fc22b760d2a24369aa72c74c4a9ab985859 | Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/pull/2924 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/security/advisories/GHSA-r374-qrwv-86hh | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html | |
| https://security.gentoo.org/glsa/202210-37 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5285 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43845 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43845 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:41:27 | Added to TrackCVE | |||
| 2022-12-06 05:13:46 | 2021-12-27T18:15Z | 2021-12-27T18:15:07 | CVE Published Date | updated |
| 2022-12-06 05:13:46 | 2022-11-18T16:15:12 | CVE Modified Date | updated | |
| 2022-12-06 05:13:46 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-06 05:13:51 | References | updated | ||
| 2023-01-27 20:13:25 | 2023-01-27T19:56:11 | CVE Modified Date | updated | |
| 2023-01-27 20:13:25 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |