openSUSE: Security Advisory for python-bleach (openSUSE-SU-2021:0552-1)

# Copyright (C) 2021 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.853664");
  script_version("2025-02-28T05:38:49+0000");
  script_cve_id("CVE-2020-6816", "CVE-2020-6817", "CVE-2021-23980");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2025-02-28 05:38:49 +0000 (Fri, 28 Feb 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-02-28 14:46:00 +0000 (Tue, 28 Feb 2023)");
  script_tag(name:"creation_date", value:"2021-04-16 04:59:16 +0000 (Fri, 16 Apr 2021)");
  script_name("openSUSE: Security Advisory for python-bleach (openSUSE-SU-2021:0552-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/opensuse", "ssh/login/rpms", re:"ssh/login/release=openSUSELeap15\.2");

  script_xref(name:"Advisory-ID", value:"openSUSE-SU-2021:0552-1");
  script_xref(name:"URL", value:"https://lists.opensuse.org/archives/list/[email protected]/thread/YFAKMJGUZHUTZ53ZAID6PRVP5MSLXPGV");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'python-bleach'
  package(s) announced via the openSUSE-SU-2021:0552-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for python-bleach fixes the following issues:

  - CVE-2021-23980: Fixed mutation XSS on bleach.clean with specific
       combinations of allowed tags (boo#1184547)

     Update to 3.1.5:

  * replace missing ``setuptools`` dependency with ``packaging``. Thank you
       Benjamin Peterson.

     Update to 3.1.4 (boo#1168280, CVE-2020-6817):

  * ``bleach.clean`` behavior parsing style attributes could result in a
       regular expression denial of service (ReDoS). Calls to ``bleach.clean``
       with an allowed tag with an allowed ``style`` attribute were vulnerable
       to ReDoS. For example, ``bleach.clean(..., attributes={&#x27 a&#x27 :
       [&#x27 style&#x27 ]})``.

  * Style attributes with dashes, or single or double quoted values are
       cleaned instead of passed through.

     update to 3.1.3 (boo#1167379, CVE-2020-6816):

  * Add relative link to code of conduct. (#442)

  * Drop deprecated &#x27 setup.py test&#x27  support. (#507)

  * Test on PyPy 7

  * Drop test support for end of life Python 3.4

  * ``bleach.clean`` behavior parsing embedded MathML and SVG content with
       RCDATA tags did not match browser behavior and could result in a
       mutation XSS. Calls to ``bleach.clean`` with ``strip=False`` and
       ``math`` or ``svg`` tags and one or more of the RCDATA tags ``script``,
       ``noscript``, ``style``, ``noframes``, ``iframe``, ``noembed``, or
       ``xmp`` in the allowed tags whitelist were vulnerable to a mutation XSS.");

  script_tag(name:"affected", value:"'python-bleach' package(s) on openSUSE Leap 15.2.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "openSUSELeap15.2") {

  if(!isnull(res = isrpmvuln(pkg:"python2-bleach", rpm:"python2-bleach~3.1.5~lp152.2.3.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python3-bleach", rpm:"python3-bleach~3.1.5~lp152.2.3.1", rls:"openSUSELeap15.2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);