CVE-2022-26495
Published: 6 March 2022
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.
Priority
Status
Package | Release | Status |
---|---|---|
nbd Launchpad, Ubuntu, Debian |
bionic |
Released
(1:3.16.2-1ubuntu0.2)
|
focal |
Released
(1:3.20-1ubuntu0.1)
|
|
impish |
Released
(1:3.21-1ubuntu0.1)
|
|
kinetic |
Released
(1:3.23-3ubuntu1)
|
|
lunar |
Released
(1:3.23-3ubuntu1)
|
|
trusty |
Needed
|
|
upstream |
Needs triage
|
|
xenial |
Needed
|
|
jammy |
Released
(1:3.23-3ubuntu1)
|
|
mantic |
Released
(1:3.23-3ubuntu1)
|
|
Patches: upstream: https://sourceforge.net/p/nbd/code/ci/4e5c5d2ed71cc9c34559e5fbeeb7f390661e530c/ |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |