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Greetings-
With the security/maintenance release of MediaWiki 1.31.13/1.35.2 [0], we
would also like to provide this supplementary announcement of MediaWiki
extensions and skins with now-public Phabricator tasks, security patches
and backports [1]:
== CommentBox ==
+ (T270767, CVE-2021-31550) - Wg variables aren't validated by CommentBox -
possible raw html insertion risk
<https://gerrit.wikimedia.org/r/651934 >
== AbuseFilter ==
+ (T272333, CVE-2021-31548) - Disallow the edit if blocking the user didn't
succeed
<https://gerrit.wikimedia.org/r/657092 >
== WikiLove ==
+ (T270142, CVE-2021-31557) - mw.config.get( 'wikilove-anon' ) leaks the
existence of hidden users
<https://gerrit.wikimedia.org/r/q/Ibcd87abe01719222beadcfc0de13038c3021adef >
== PageForms ==
+ (T259433, CVE-2021-31551) - XSS issue in Extension:PageForms
<https://gerrit.wikimedia.org/r/q/I5e0abbc2f80e6bda255b3b32a4df39a7fe7d3793 >
<https://gerrit.wikimedia.org/r/q/Ibe68b070ee791cd0c8e7f50eb04ac4e066b1512c >
<https://gerrit.wikimedia.org/r/q/I20b63bd38779d2ccbe2d86f9879df85ca3b685f6 >
== AbuseFilter ==
+ (T71617, CVE-2021-31546) - AbuseFilter logs suppression deletions
<https://gerrit.wikimedia.org/r/q/I38a0a24fa32ca7a052b6940864a32b3856e84553 >
== AbuseFilter ==
+ (T223654, CVE-2021-31547) - AbuseFilterCheckMatch API reveals suppressed
edits and usernames
<https://gerrit.wikimedia.org/r/q/I4900b1be73323599d74e3164447f81eded094d75 >
<https://gerrit.wikimedia.org/r/q/I3f7dbd8b873d411e37c8c3aac2339bf5ec36907d >
== AbuseFilter ==
+ (T71367, CVE-2021-31545) - page_recent_contributors leaks revdeleted user
names
<https://gerrit.wikimedia.org/r/q/I8d5ed9ca84282ee50832035af86123633fc88293 >
== AbuseFilter ==
+ (T274152, CVE-2021-31549) - Special:AbuseFilter/examine reveals
suppressed usernames
<https://gerrit.wikimedia.org/r/q/I6063c02fa261c4cc0e6dbbb2db4e111eb85912c2 >
<https://gerrit.wikimedia.org/r/q/I71a6d521bd12931ce60eec4d2dc35af19146000f >
== CheckUser ==
+ (T275669, CVE-2021-31553) - Checkuser stores users to cu_log with
trailing spaces, allowing all CUs to turn off Special:CheckuserLog at will
<https://gerrit.wikimedia.org/r/666963 >
<https://gerrit.wikimedia.org/r/666964 >
== AbuseFilter ==
+ (T152394, CVE-2021-31552) - AbuseFilter privacy concerns on action ==
'createaccount' and 'accountname'
<https://gerrit.wikimedia.org/r/q/I8bae477ad7e4d0190335363ac2decf28e4313da1 >
== AbuseFilter ==
+ (T272244, CVE-2021-31554) - AbuseFilter blocks not working for account
autocreations
<https://gerrit.wikimedia.org/r/q/Ie1f4333d5b1c9d17fb2236fe38a31de427a4cc48 >
== OAuth ==
+ (T277380, CVE-2021-31556) - OAuth doesn't validate length of oarc_rsa_key
<https://gerrit.wikimedia.org/r/q/I13ff0350a9a0a3cd5ab3e1f82dd0d8d9c13cf9e9 >
== OAuth ==
+ (T277388, CVE-2021-31555) - OAuth doesn't validate length of oarc_version
<https://gerrit.wikimedia.org/r/q/I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139d >
The Wikimedia Security Team recommends updating these extensions and/or
skins to the current master branch or relevant, supported release branch
[2] as soon as possible. Some of the referenced Phabricator tasks above
_may_ still be private. Unfortunately, when security issues are reported,
sometimes sensitive information is exposed and since Phabricator is
historical, we cannot make these tasks public without exposing this
sensitive information. If you have any additional questions or concerns
regarding this update, please feel free to contact security(a)wikimedia.org
or file a security task within Phabricator [3].
[0]
https://lists.wikimedia.org/pipermail/mediawiki-announce/2021-April/000272.…
[1] https://phabricator.wikimedia.org/T270466
[2] https://www.mediawiki.org/wiki/Version_lifecycle
[3] https://www.mediawiki.org/wiki/Reporting_security_bugs
--
Scott Bassett
sbassett(a)wikimedia.org
I would like to announce the release of MediaWiki 1.31.13 and 1.35.2!
These releases also serve as a maintenance release for these branches.
Numerous fixes have been backported into 1.35, including some for PHP 8.0
support (though we are not declaring full PHP 8.0 support yet).
This is the first MediaWiki release where zip files are included too. This
is due to some issues with the tarballs for some users with certain
extraction applications.
Composer 2.0 is also now supported on MediaWiki 1.35.2.
MediaWiki also has a new logo as of these releases.
T270453 does not apply to MediaWiki 1.31.13, as VisualEditor is not
bundled. However the patch will be backported to the 1.31 branch if you use
VisualEditor, and you should pick up the update from the usual places.
T279451 also does not apply to MediaWiki 1.31.13, as Parsoid is not
bundled. If you use the node.js service, it is recommended to update this.
T276843 has been fixed in different ways on MediaWiki 1.31.13 and MediaWiki
1.35.2. On the former, we have just disabled the known vulnerable lexers.
On 1.35.2, we have upgraded pygments from 2.5.2 to 2.7.4.
While tarballs have already been uploaded, git tags will follow later on
today.
An "MediaWiki Extensions Security Release Supplement" email will follow
this one.
== Security fixes ==
* (T270453, CVE-2021-30153) SECURITY: ApiVisualEditor leaks info about
hidden users.
* (T270713, CVE-2021-30152) SECURITY: Allow user to only apply protection
they have right to do so via action=protect.
* (T270988, CVE-2021-30155) SECURITY: ContentModelChange: Check that user
can create pages.
* (T272386, CVE-2021-30159) SECURITY: Non-admin deleted enwiki page in fast
double move.
* (T276843, CVE-2021-20270, CVE-2021-27291) SECURITY: Various
SyntaxHighlight lexers are vulnerable to DoS.
* (T277009, CVE-2021-30158) SECURITY: Allow blocked users to access
Special:ResetTokens.
* (T278014, CVE-2021-30154) SECURITY: Escape mediastatistics-header-*
messages on Special:NewFiles.
* (T278058, CVE-2021-30157) SECURITY: Escape rcfilters-filter-* messages
onChangesList pages.
* (T279451, CVE-2021-30458) SECURITY: Parsoid comment fostering allows for
inserting mostly arbitrary <meta> tags.
== Links to all mentioned tasks ==
* https://phabricator.wikimedia.org/T270453
* https://phabricator.wikimedia.org/T270713
* https://phabricator.wikimedia.org/T270988
* https://phabricator.wikimedia.org/T272386
* https://phabricator.wikimedia.org/T276843
* https://phabricator.wikimedia.org/T277009
* https://phabricator.wikimedia.org/T278014
* https://phabricator.wikimedia.org/T278058
* https://phabricator.wikimedia.org/T279451
== Release notes ==
Full release notes for 1.31.13:
https://phabricator.wikimedia.org/diffusion/MW/browse/REL1_31/RELEASE-NOTES…
https://www.mediawiki.org/wiki/Release_notes/1.31
Full release notes for 1.35.2:
https://phabricator.wikimedia.org/diffusion/MW/browse/REL1_35/RELEASE-NOTES…
https://www.mediawiki.org/wiki/Release_notes/1.35
For information about how to upgrade, see
<https://www.mediawiki.org/wiki/Manual:Upgrading >
**********************************************************************
Download:
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.tar.gz
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.zip
Download without bundled extensions:
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.tar.gz
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.zip
Patch to previous version (1.31.12):
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.gz
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.zip
GPG signatures:
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.tar.gz…
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.zip.sig
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.tar.gz.sig
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.zip.sig
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.gz.sig
https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.zip.s…
Public keys:
https://www.mediawiki.org/keys/keys.html
**********************************************************************
Download:
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.tar.gz
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.zip
Download without bundled extensions:
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.tar.gz
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.zip
Patch to previous version (1.35.1):
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.gz
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.zip
GPG signatures:
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.tar.gz.…
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.zip.sig
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.tar.gz.sig
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.zip.sig
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.gz.sig
https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.zip.sig
Public keys:
https://www.mediawiki.org/keys/keys.html
Hi all,
Tomorrow we will be issuing a security and maintenance release to all
supported branches of MediaWiki. This has been delayed by a week versus the
usual schedule, as making a security last week on 1st April ("April Fools")
was deemed not a great idea.
The new releases will be:
- 1.31.13
- 1.35.2
This will resolve 3 issues in MediaWiki core, 2 issues in bundled
extensions (one of which doesn't apply to REL1_31), and also includes some
fixes previously committed to git, including minor security and hardening
patches along with bug fixes included for maintenance reasons.
We will make the fixes available in these respective release branches, and
also master. Tarballs will be available for the above mentioned point
releases as well.
A summary of some of the security fixes that have gone into non-bundled
MediaWiki extensions will also follow.
[1] https://www.mediawiki.org/wiki/Version_lifecycle