Bug 2507565 - CVE-2026-48829 libgsasl: Denial of Service via NULL pointer dereference in DIGEST-MD5 [fedora-all]
Summary: CVE-2026-48829 libgsasl: Denial of Service via NULL pointer dereference in DI...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: libgsasl
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Peter Lemenkov
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["bee0a35b-db01-43b4-8647-5...
Depends On:
Blocks: CVE-2026-48829
TreeView+ depends on / blocked
 
Reported: 2026-07-27 16:38 UTC by Mauro Matteo Cascella
Modified: 2026-08-16 01:05 UTC (History)
3 users (show)

Fixed In Version: libgsasl-1.10.0-17.fc43 libgsasl-1.10.0-17.fc44
Clone Of:
Environment:
Last Closed: 2026-08-16 01:05:07 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Mauro Matteo Cascella 2026-07-27 16:38:27 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.

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.

Comment 1 Fedora Update System 2026-08-07 11:19:12 UTC
FEDORA-2026-110274a705 (libgsasl-1.10.0-17.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-110274a705

Comment 2 Fedora Update System 2026-08-07 11:19:12 UTC
FEDORA-2026-f2ced62115 (libgsasl-1.10.0-17.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f2ced62115

Comment 3 Fedora Update System 2026-08-08 01:41:40 UTC
FEDORA-2026-f2ced62115 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-f2ced62115`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f2ced62115

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

Comment 4 Fedora Update System 2026-08-08 02:09:04 UTC
FEDORA-2026-110274a705 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-2026-110274a705`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-110274a705

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

Comment 5 Fedora Update System 2026-08-16 01:05:07 UTC
FEDORA-2026-110274a705 (libgsasl-1.10.0-17.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-08-16 01:05:56 UTC
FEDORA-2026-f2ced62115 (libgsasl-1.10.0-17.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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