Bug 2499583

Summary:	CVE-2026-58471 wget1: GNU Wget: Heap buffer overflow via server-supplied filename leads to memory corruption [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Srikanth Balasubramanian <sbalasub>
Component:	wget1	Assignee:	Michal Ruprich <mruprich>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	mruprich
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["442a868e-aa9b-4869-8aaa-9db397530578"]}
Fixed In Version:	wget1-1.25.0-4.fc44 wget1-1.25.0-3.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-07-21 00:57:22 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2497850

Description Srikanth Balasubramanian 2026-07-13 05:27:21 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.

GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.

Comment 1 Fedora Update System 2026-07-16 08:34:57 UTC

FEDORA-2026-1b91a2f126 (wget1-1.25.0-4.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1b91a2f126

Comment 2 Fedora Update System 2026-07-16 08:35:06 UTC

FEDORA-2026-7bbb52b49d (wget1-1.25.0-3.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-7bbb52b49d

Comment 3 Fedora Update System 2026-07-17 01:36:26 UTC

FEDORA-2026-1b91a2f126 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-2026-1b91a2f126`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1b91a2f126

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

Comment 4 Fedora Update System 2026-07-17 01:52:35 UTC

FEDORA-2026-7bbb52b49d 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-2026-7bbb52b49d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7bbb52b49d

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

Comment 5 Fedora Update System 2026-07-21 00:57:22 UTC

FEDORA-2026-1b91a2f126 (wget1-1.25.0-4.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-07-25 01:17:49 UTC

FEDORA-2026-7bbb52b49d (wget1-1.25.0-3.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.