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Sicherheit: Mangelnde Eingabeprüfung in python-bleach
Aktuelle Meldungen Distributionen
Name: Mangelnde Eingabeprüfung in python-bleach
ID: FEDORA-2018-e38f759144
Distribution: Fedora
Plattformen: Fedora 27
Datum: Mi, 18. April 2018, 07:48
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-e38f759144
2018-04-18 01:20:06.984320
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Name : python-bleach
Product : Fedora 27
Version : 2.1.3
Release : 1.fc27
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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ChangeLog:

* Tue Mar 6 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> -
2.1.3-1
- Update to 2.1.3
* Fri Feb 9 2018 Fedora Release Engineering <releng@fedoraproject.org> -
2.1.2-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
* Fri Dec 8 2017 Matthias Runge <mrunge@redhat.com> - 2.1.2-1
- update to 2.1.2 (rhbz#1523423)
* Tue Oct 3 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> -
2.1.1-1
- Update to 2.1.1
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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 --advisory FEDORA-2018-e38f759144' 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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