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CVE-2022-26495

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 06-03-2022 07:15
Last modified: - 25-04-2022 09:26
Total changes: - 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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Low
Attack complexity
Network
Attack vector
High
Availability
High
Confidentiality
High
Integrity
None
Privileges required
Unchanged
Scope
None
User interaction
9.8
Base score
3.9
5.9
Exploitability score
Impact score
 

Verification logic

OR
OR
vendor=network_block_device_project AND product=network_block_device AND versionEndExcluding=3.24
OR
vendor=Debian AND product=debian_linux AND version=9.0
vendor=Debian AND product=debian_linux AND version=10.0
vendor=Debian AND product=debian_linux AND version=11.0
OR
vendor=fedoraproject AND product=fedora AND version=34
vendor=fedoraproject AND product=fedora AND version=35
vendor=fedoraproject AND product=fedora AND version=36
 

Reference

 


Keywords

NVD

 

CVE-2022-26495

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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