Bug 1651869 (CVE-2018-19046) - CVE-2018-19046 keepalived: Insecure use of temporary files allows attackers read sensitive information from pre-existing files
Summary: CVE-2018-19046 keepalived: Insecure use of temporary files allows attackers r...
Alias: CVE-2018-19046
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1651870 1652398
Blocks: 1651865
TreeView+ depends on / blocked
Reported: 2018-11-21 05:42 UTC by Sam Fowler
Modified: 2021-02-16 22:45 UTC (History)
10 users (show)

Fixed In Version: keepalived 2.0.10
Doc Type: If docs needed, set a value
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Clone Of:
Last Closed: 2019-06-10 10:42:52 UTC

Attachments (Terms of Use)

Description Sam Fowler 2018-11-21 05:42:30 UTC
keepalived before version 2.0.10 didn't check for existing plain files when writing data to a temporary file upon a call to PrintData or PrintStats. If a local attacker had previously created a file with the expected name (e.g., /tmp/keepalived.data or /tmp/keepalived.stats), with read access for the attacker and write access for the keepalived process, then this potentially leaked sensitive information.

Upstream Issue:




Comment 1 Sam Fowler 2018-11-21 05:43:00 UTC
Created keepalived tracking bugs for this issue:

Affects: fedora-all [bug 1651870]

Comment 5 Adam Mariš 2018-11-29 14:23:11 UTC

This issue did not affect the versions of keepalived as shipped with Red Hat Enterprise Linux 6 and 7 as the packages are not built with dbus support, therefore the vulnerable code is not available in resulting RPM and the issue cannot be exploited.

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