Bug 2450237 - CVE-2026-4437 zig: glibc: Incorrect DNS response parsing via crafted DNS server response [fedora-43]
Summary: CVE-2026-4437 zig: glibc: Incorrect DNS response parsing via crafted DNS serv...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: zig
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Jan Drögehoff
QA Contact:
URL:
Whiteboard: {"flaws": ["19e0c09c-d489-45af-8efe-2...
: 2450228 2450230 2450234 (view as bug list)
Depends On:
Blocks: CVE-2026-4437
TreeView+ depends on / blocked
 
Reported: 2026-03-23 06:56 UTC by Sandipan Roy
Modified: 2026-03-24 17:53 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-03-24 17:53:34 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Sandipan Roy 2026-03-23 06:56:28 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.
Comment 1 Jan Drögehoff 2026-03-24 17:49:59 UTC 
*** Bug 2450234 has been marked as a duplicate of this bug. ***
Comment 2 Jan Drögehoff 2026-03-24 17:50:05 UTC 
*** Bug 2450230 has been marked as a duplicate of this bug. ***
Comment 3 Jan Drögehoff 2026-03-24 17:50:14 UTC 
*** Bug 2450228 has been marked as a duplicate of this bug. ***
Comment 4 Jan Drögehoff 2026-03-24 17:53:34 UTC 
neither `gethostbyaddr` nor `gethostbyaddr_r` are used by the Zig compiler or the Zig standard library.
Note You need to log in before you can comment on or make changes to this bug.