Bug 2562330 - CVE-2026-102486 ntpsec: ntpsec: Denial of Service via out-of-bounds read in NTS extension field parsing [fedora-all]
Summary: CVE-2026-102486 ntpsec: ntpsec: Denial of Service via out-of-bounds read in N...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: ntpsec
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Miroslav Lichvar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["c7510b22-a3bb-4130-ad89-c...
Depends On:
Blocks: CVE-2026-102486
TreeView+ depends on / blocked
 
Reported: 2026-10-27 18:56 UTC by Oleg Sushchenko
Modified: 2026-10-29 07:43 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-10-29 07:43:37 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Oleg Sushchenko 2026-10-27 18:56:11 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.

Out-of-bounds read in NTS extension field parsing in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to crash the daemon via an NTS Authenticator and Encrypted Extension Fields (AEEF) field with an oversized nonce length.
Comment 1 Miroslav Lichvar 2026-10-29 07:43:37 UTC 
Fixed by:
https://bodhi.fedoraproject.org/updates/FEDORA-2026-cf1a6e2b9d
https://bodhi.fedoraproject.org/updates/FEDORA-2026-0c9e216697
https://bodhi.fedoraproject.org/updates/FEDORA-2026-7fb98d1c29
https://bodhi.fedoraproject.org/updates/FEDORA-2026-81589a14c2
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