Bug 2512002 - CVE-2026-53689 libnfs: libnfs: Information disclosure and data corruption via crafted NFS server connection [fedora-all]
Summary: CVE-2026-53689 libnfs: libnfs: Information disclosure and data corruption via...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: libnfs
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Xavier Bachelot
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["1f2d2602-a775-436a-a135-d...
Depends On:
Blocks: CVE-2026-53689
TreeView+ depends on / blocked
 
Reported: 2026-08-06 12:23 UTC by Vladimir Vasilev
Modified: 2026-08-14 01:18 UTC (History)
1 user (show)

Fixed In Version: libnfs-6.0.2-9.fc44
Clone Of:
Environment:
Last Closed: 2026-08-14 01:18:13 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Vladimir Vasilev 2026-08-06 12:23:27 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c.

Comment 1 Fedora Update System 2026-08-10 22:29:15 UTC
FEDORA-2026-2e196b6fa5 (libnfs-6.0.2-9.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-2e196b6fa5

Comment 2 Fedora Update System 2026-08-10 22:29:18 UTC
FEDORA-2026-8ae1795f2b (libnfs-6.0.2-9.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-8ae1795f2b

Comment 3 Fedora Update System 2026-08-11 03:38:49 UTC
FEDORA-2026-8ae1795f2b has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8ae1795f2b`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8ae1795f2b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-08-11 03:57:50 UTC
FEDORA-2026-2e196b6fa5 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-2e196b6fa5`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-2e196b6fa5

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-08-14 01:18:13 UTC
FEDORA-2026-8ae1795f2b (libnfs-6.0.2-9.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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