CVE-2022-26495
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.
Overview
- CVE ID
- CVE-2022-26495
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-06T06:15:07
- Last Modified Date
- 2022-04-25T19:26:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:network_block_device_project:network_block_device:*:*:*:*:*:*:*:* | 1 | OR | 3.24 | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 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://sourceforge.net/projects/nbd/files/nbd/ | Product Release Notes Third Party Advisory |
| https://lists.debian.org/nbd/2022/01/msg00037.html | Exploit Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00014.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5100 | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/ | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/ | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-26495 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26495 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:41:45 | Added to TrackCVE | |||
| 2022-12-06 11:23:45 | 2022-03-06T06:15Z | 2022-03-06T06:15:07 | CVE Published Date | updated |
| 2022-12-06 11:23:45 | 2022-04-25T19:26:37 | CVE Modified Date | updated | |
| 2022-12-06 11:23:45 | Analyzed | Vulnerability Status | updated |