CVE-2022-3176
CVSS V2 None
CVSS V3 High 7.8
Description
There exists a use-after-free in io_uring in the Linux kernel. Signalfd_poll() and binder_poll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the io_uring poll doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with io_uring poll, and the waitqueue gets freed. We recommend upgrading past commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659
Overview
- CVE ID
- CVE-2022-3176
- Assigner
- cve-coordination@google.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-09-16T14:15:09
- Last Modified Date
- 2023-04-11T18:15:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=linux-5.4.y&id=fc78b2fc21f10c4c9c4d5d659a685710ffa63659 | Mailing List Patch Vendor Advisory |
| https://kernel.dance/#fc78b2fc21f10c4c9c4d5d659a685710ffa63659 | Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20230216-0003/ | |
| https://www.debian.org/security/2022/dsa-5257 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-3176 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3176 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-09-16 15:00:24 | Added to TrackCVE | |||
| 2023-02-16 15:13:08 | 2023-02-16T14:15:15 | CVE Modified Date | updated | |
| 2023-02-16 15:13:08 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-16 15:13:08 | References | updated | ||
| 2023-04-11 21:16:12 | 2023-04-11T18:15:23 | CVE Modified Date | updated | |
| 2023-04-11 21:16:12 | Modified | Analyzed | Vulnerability Status | updated |