FEDORA-2018-89a3999673

security update in Fedora 29 for rpm

Status: stable a year ago

An unfortunate regression in rpm 4.14.2 causes --setperms to behave incorrectly on symbolic links: file and directory permissions become world writable and executable on symlink targets. A similar flaw exists in --setugids, but it is less exploitable.

If you have used --setperms (or --setugids, or --restore) with rpm 4.14.2, you should ensure system integrity with rpm --verify before proceeding to correct any mixed up permissions and ownerships to avoid possibly giving suid capabilities to a modified binary.

Further details of the --setperms bug available upstream: http://rpm.org/wiki/Releases/4.14.2.1

Note that this update can not automatically fix possible damage done by using –setperms, –setugids or –restore with rpm 4.14.2, it merely fixes the functionlity itself. Any damage needs to be investigated and fixed manually, such as using –verify and –restore or reinstalling packages.

How to install

sudo dnf upgrade --advisory=FEDORA-2018-89a3999673

Comments 15

This update has been submitted for testing by pmatilai.

pmatilai edited this update.

This update has been pushed to testing.

works as usual

karma: +1 critpath: +1

Works great! LGTM! =)

karma: +1

works

karma: +1

pmatilai edited this update.

No regressions found

karma: +1

works for me

karma: +1

Works after upgrade from F28 to F29.

karma: +1

no regressions noted

karma: +1

This update has been submitted for batched by pmatilai.

This update has been submitted for stable by bodhi.

This update has been pushed to stable.

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Content Type
RPM
Status
stable
Test Gating
Submitted by
Update Type
security
Update Severity
high
Karma
+8
stable threshold: 5
unstable threshold: -3
Autopush (karma)
Disabled
Autopush (time)
Disabled
Dates
submitted a year ago
in testing a year ago
in stable a year ago
modified a year ago

Automated Test Results