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Debian LTS: Security Advisory for mediawiki (DLA-2504-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'mediawiki' package(s) announced via the DLA-2504-1 advisory.
Insight
Insight
Multiple security issues were discovered in MediaWiki, a website engine for collaborative work. CVE-2020-15005 Private wikis behind a caching server using the img_auth.php image authorization security feature may have had their files cached publicly, so any unauthorized user could view them. CVE-2020-35477 Blocks legitimate attempts to hide log entries in some situations. CVE-2020-35479 Allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is always unsafe for HTML in a month value. CVE-2020-35480 Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers.
Affected Software
Affected Software
'mediawiki' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 9 stretch, these problems have been fixed in version 1:1.27.7-1~deb9u7. We recommend that you upgrade your mediawiki packages.