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Sicherheit: Mangelnde Rechteprüfung in python-bleach
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in python-bleach
ID: FEDORA-2018-994424b810
Distribution: Fedora
Plattformen: Fedora 28
Datum: Fr, 30. März 2018, 16:18
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7753
https://bugzilla.redhat.com/show_bug.cgi?id=1551804
Applikationen: python-bleach

Originalnachricht

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Fedora Update Notification
FEDORA-2018-994424b810
2018-03-30 12:38:03.442137
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Name : python-bleach
Product : Fedora 28
Version : 2.1.3
Release : 1.fc28
URL : http://github.com/jsocol/bleach
Summary : An easy whitelist-based HTML-sanitizing tool
Description :
Bleach is an HTML sanitizing library that escapes or strips markup and
attributes based on a white list.

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Update Information:

Version 2.1.3 (March 5th, 2018) ------------------------------- **Security
fixes** * Attributes that have URI values weren't properly sanitized if
the
values contained character entities. Using character entities, it was
possible
to construct a URI value with a scheme that was not allowed that would slide
through unsanitized. This security issue was introduced in Bleach 2.1.
Anyone
using Bleach 2.1 is highly encouraged to upgrade. **Backwards incompatible
changes** None **Features** None **Bug fixes** * Fixed some other edge
cases for attribute URI value sanitizing and improved testing of this code.
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References:

[ 1 ] Bug #1551804 - python-bleach-2.1.3 is available
https://bugzilla.redhat.com/show_bug.cgi?id=1551804
[ 2 ] Bug #1558268 - CVE-2018-7753 python-bleach: URI Scheme Restriction
Bypass with character entities [fedora-26]
https://bugzilla.redhat.com/show_bug.cgi?id=1558268
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade python-bleach' at the command line.
For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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