Bug 2061542 (CVE-2022-26496) - CVE-2022-26496 nbd: stack-based buffer overflow during name parsing in nbd-server.c
Summary: CVE-2022-26496 nbd: stack-based buffer overflow during name parsing in nbd-se...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-26496
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2061888 2061889
Blocks: 2061543
TreeView+ depends on / blocked
 
Reported: 2022-03-07 19:23 UTC by Patrick Del Bello
Modified: 2022-03-08 21:32 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2022-03-08 21:32:40 UTC
Embargoed:

Attachments (Terms of Use)

Description Patrick Del Bello 2022-03-07 19:23:47 UTC 
In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.

https://sourceforge.net/projects/nbd/files/nbd/
https://lists.debian.org/nbd/2022/01/msg00037.html
https://lists.debian.org/nbd/2022/01/msg00036.html
Comment 1 Guilherme de Almeida Suckevicz 2022-03-08 16:56:33 UTC 
Created nbd tracking bugs for this issue:

Affects: epel-7 [bug 2061888]
Affects: fedora-all [bug 2061889]
Comment 2 Product Security DevOps Team 2022-03-08 21:32:38 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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