openSUSE-SU-2021:0552-1: important: Security update for python-bleach

openSUSE Security Update: Security update for python-bleach ______________________________________________________________________________ Announcement ID: openSUSE-SU-2021:0552-1 Rating: important References: #1167379 #1168280 #1184547 Cross-References: CVE-2020-6816 CVE-2020-6817 CVE-2021-23980 CVSS scores: CVE-2020-6816 (NVD) : 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVE-2021-23980 (SUSE): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Affected Products: openSUSE Leap 15.2 ______________________________________________________________________________ An update that fixes three vulnerabilities is now available. Description: 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={'a': 'style']}). * 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 ‘setup.py test’ support. (#507) * Fix typo: curren → current in tests/test_clean.py (#504) * 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. Patch Instructions: To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or “zypper patch”. Alternatively you can run the command listed for your product: - openSUSE Leap 15.2: zypper in -t patch openSUSE-2021-552=1 Package List: - openSUSE Leap 15.2 (noarch): python2-bleach-3.1.5-lp152.2.3.1 python3-bleach-3.1.5-lp152.2.3.1 References: https://www.suse.com/security/cve/CVE-2020-6816.html https://www.suse.com/security/cve/CVE-2020-6817.html https://www.suse.com/security/cve/CVE-2021-23980.html https://bugzilla.suse.com/1167379 https://bugzilla.suse.com/1168280 https://bugzilla.suse.com/1184547

More…