CVE-2017-15131

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-01-09 · updated 2026-06-17
Weakness: CWE-284

Description

It was found that system umask policy is not being honored when creating XDG user directories, since Xsession sources xdg-user-dirs.sh before setting umask policy. This only affects xdg-user-dirs before 0.15.5 as shipped with Red Hat Enterprise Linux.

Affected products

Freedesktop Xdg-User-Dirs: before 0.15.5 — fixed in 0.15.5
Red Hat Enterprise Linux: 7.0

How to fix

Upgrade to a fixed version: Freedesktop Xdg-User-Dirs 0.15.5. Check the vendor advisory for mitigations.

References

https://access.redhat.com/errata/RHSA-2018:0842
https://bugzilla.redhat.com/show_bug.cgi?id=1412762
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
https://access.redhat.com/errata/RHSA-2018:0842
https://bugzilla.redhat.com/show_bug.cgi?id=1412762
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E

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