Bug 2457746 - CVE-2026-40386 libexif: libexif: Denial of Service and information disclosure via integer underflow in MakerNote decoding [fedora-all]
Summary: CVE-2026-40386 libexif: libexif: Denial of Service and information disclosure...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: libexif
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Yaakov Selkowitz
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["4925eee6-cd29-425c-b5d1-f...
Depends On:
Blocks: CVE-2026-40386 F44FinalFreezeException
TreeView+ depends on / blocked
 
Reported: 2026-04-13 05:38 UTC by Sandipan Roy
Modified: 2026-04-30 01:29 UTC (History)
5 users (show)

Fixed In Version: libexif-0.6.26-1.fc43 libexif-0.6.26-1.fc44
Clone Of:
Environment:
Last Closed: 2026-04-24 05:55:59 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Sandipan Roy 2026-04-13 05:38:58 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 2026-04-14 20:04:39 UTC
FEDORA-2026-fd361a6f7f (libexif-0.6.26-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-fd361a6f7f

Comment 2 Fedora Update System 2026-04-14 20:04:43 UTC
FEDORA-2026-78adb25141 (libexif-0.6.26-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-78adb25141

Comment 3 Fedora Update System 2026-04-15 00:54:21 UTC
FEDORA-2026-78adb25141 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-2026-78adb25141`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-78adb25141

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

Comment 4 Fedora Update System 2026-04-15 01:11:48 UTC
FEDORA-2026-fd361a6f7f 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-fd361a6f7f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-fd361a6f7f

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

Comment 5 Fedora Update System 2026-04-15 01:34:12 UTC
FEDORA-2026-b01307dc4d 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-b01307dc4d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-b01307dc4d

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

Comment 6 Fedora Blocker Bugs Application 2026-04-16 20:15:01 UTC
Proposed as a Freeze Exception for 44-final by Fedora user yselkowitz using the blocker tracking app because:

 CVE in critical path package

Comment 7 Fedora Update System 2026-04-17 00:54:15 UTC
FEDORA-2026-78adb25141 (libexif-0.6.26-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Adam Williamson 2026-04-17 16:43:35 UTC
+3 in https://pagure.io/fedora-qa/blocker-review/issue/2115 , marking accepted FE.

Comment 9 Fedora Update System 2026-04-24 05:55:59 UTC
FEDORA-2026-fd361a6f7f (libexif-0.6.26-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-04-30 01:29:32 UTC
FEDORA-2026-b01307dc4d (libexif-0.6.26-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.


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