Bug 2520166 - CVE-2026-70461 rsync: rsync: Information disclosure and denial of service via crafted files-from entry [fedora-all]
Summary: CVE-2026-70461 rsync: rsync: Information disclosure and denial of service via...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: rsync
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Michal Ruprich
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["ab0d8405-3721-4f13-8191-9...
Depends On:
Blocks: CVE-2026-70461
TreeView+ depends on / blocked
 
Reported: 2026-08-20 09:41 UTC by Srikanth Balasubramanian
Modified: 2026-08-27 01:11 UTC (History)
3 users (show)

Fixed In Version: rsync-3.5.0-1.fc44 rsync-3.5.0-1.fc43
Clone Of:
Environment:
Last Closed: 2026-08-22 01:24:49 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Srikanth Balasubramanian 2026-08-20 09:41:49 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.

rsync 3.2.5 before 3.5.0 contains a heap out-of-bounds write vulnerability that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation by supplying a crafted files-from entry. Attackers can trigger the vulnerability against a read-only rsync daemon module by providing a files-from entry containing both an interior and trailing backslash, causing the add_implied_include() function to under-count the trailing backslash when sizing the destination buffer.

Comment 1 Fedora Update System 2026-08-20 12:50:16 UTC
FEDORA-2026-bfae8723e2 (rsync-3.5.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-bfae8723e2

Comment 2 Fedora Update System 2026-08-20 12:50:46 UTC
FEDORA-2026-d6763b4c84 (rsync-3.5.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d6763b4c84

Comment 3 Fedora Update System 2026-08-21 05:41:40 UTC
FEDORA-2026-bfae8723e2 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-bfae8723e2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-bfae8723e2

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

Comment 4 Fedora Update System 2026-08-21 06:00:46 UTC
FEDORA-2026-d6763b4c84 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-d6763b4c84`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d6763b4c84

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

Comment 5 Fedora Update System 2026-08-22 01:24:49 UTC
FEDORA-2026-bfae8723e2 (rsync-3.5.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-08-27 01:11:35 UTC
FEDORA-2026-d6763b4c84 (rsync-3.5.0-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


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