Bug 2247308 (CVE-2023-5871) - CVE-2023-5871 libnbd: Malicious NBD server may crash libnbd
Summary: CVE-2023-5871 libnbd: Malicious NBD server may crash libnbd
Keywords:
Status: NEW
Alias: CVE-2023-5871
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2250809
Blocks: 2247303
TreeView+ depends on / blocked
 
Reported: 2023-10-31 19:12 UTC by Rohit Keshri
Modified: 2024-04-30 09:47 UTC (History)
3 users (show)

Fixed In Version: libnbd 1.18.2
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:2204 0 None None None 2024-04-30 09:47:58 UTC

Description Rohit Keshri 2023-10-31 19:12:23 UTC 
A malicious NBD server can easily crash libnbd

Refer:
https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/PFVUCMPFQUDC23JXSCUUPXIGDZ7XCFMD/
Comment 4 Sandipan Roy 2023-11-21 09:12:47 UTC 
Created libnbd tracking bugs for this issue:

Affects: fedora-all [bug 2250809]
Comment 5 Vipul Nair 2023-12-10 11:06:28 UTC 
Hey Rohit shouldn't the Availability in the CVSS be marked as high as this results in a crash? If not could you drop an email to NVD?
Comment 8 errata-xmlrpc 2024-04-30 09:47:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2204 https://access.redhat.com/errata/RHSA-2024:2204
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