CVE-2022-2526
CVSS V2 None
CVSS V3 Critical 9.8
Description
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
Overview
- CVE ID
- CVE-2022-2526
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-09-09T15:15:10
- Last Modified Date
- 2023-01-20T03:17:34
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:systemd_project:systemd:240:*:*:*:*:*:*:* | 1 | OR |
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://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20221111-0005/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-2526 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2526 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-09-09 16:00:13 | Added to TrackCVE | |||
| 2023-01-20 06:13:15 | 2023-01-20T03:17:34 | CVE Modified Date | updated | |
| 2023-01-20 06:13:15 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |