Bug 2433314

Summary: CVE-2026-1484 mingw-glib2: Integer Overflow Leading to Buffer Underflow and Out-of-Bounds Write in GLib g_base64_encode() [fedora-all]
Product: [Fedora] Fedora Reporter: Abhishek Raj <abhraj>
Component: mingw-glib2Assignee: Kalev Lember <kalevlember>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: fedora, kalevlember, manisandro, marcandre.lureau, rjones
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["a1c2e48b-9ea4-412f-b7f8-2a9358aad591"]}
Fixed In Version: mingw-glib2-2.84.3-3.fc42 mingw-glib2-2.86.3-3.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-02-08 00:52:37 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: 2433259    

Description Abhishek Raj 2026-01-27 12:56:13 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 Fedora Update System 2026-01-29 18:26:15 UTC
FEDORA-2026-2c53d4d272 (mingw-glib2-2.84.3-3.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-2c53d4d272

Comment 2 Fedora Update System 2026-01-29 18:26:15 UTC
FEDORA-2026-607c3364fd (mingw-glib2-2.86.3-3.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-607c3364fd

Comment 3 Fedora Update System 2026-01-31 16:54:13 UTC
FEDORA-2026-607c3364fd 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-2026-607c3364fd`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-607c3364fd

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

Comment 4 Fedora Update System 2026-01-31 18:29:46 UTC
FEDORA-2026-2c53d4d272 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-2c53d4d272`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-2c53d4d272

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

Comment 5 Fedora Update System 2026-02-08 00:52:37 UTC
FEDORA-2026-2c53d4d272 (mingw-glib2-2.84.3-3.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-02-08 01:09:52 UTC
FEDORA-2026-607c3364fd (mingw-glib2-2.86.3-3.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.