opensuse-su-2021:0552-1
Vulnerability from csaf_opensuse
Published
2021-04-14 14:51
Modified
2021-04-14 14:51
Summary
Security update for python-bleach

Notes

Title of the patch
Security update for python-bleach
Description of the patch
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.
Patchnames
openSUSE-2021-552
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for python-bleach",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for python-bleach fixes the following issues:\n\n- CVE-2021-23980: Fixed mutation XSS on bleach.clean with specific\n  combinations of allowed tags (boo#1184547)\n\nUpdate to 3.1.5:\n\n* replace missing ``setuptools`` dependency with ``packaging``. Thank you Benjamin Peterson.\n\nUpdate to 3.1.4 (boo#1168280, CVE-2020-6817):\n\n* ``bleach.clean`` behavior parsing style attributes could result in a\n  regular expression denial of service (ReDoS).\n  Calls to ``bleach.clean`` with an allowed tag with an allowed\n  ``style`` attribute were vulnerable to ReDoS. For example,\n  ``bleach.clean(..., attributes={\u0027a\u0027: [\u0027style\u0027]})``.\n* Style attributes with dashes, or single or double quoted values are\n  cleaned instead of passed through.\n\nupdate to 3.1.3 (boo#1167379, CVE-2020-6816):\n\n* Add relative link to code of conduct. (#442)\n* Drop deprecated \u0027setup.py test\u0027 support. (#507)\n* Fix typo: curren -\u003e current in tests/test_clean.py (#504)\n* Test on PyPy 7\n* Drop test support for end of life Python 3.4\n* ``bleach.clean`` behavior parsing embedded MathML and SVG content\n  with RCDATA tags did not match browser behavior and could result in\n  a mutation XSS.\n  Calls to ``bleach.clean`` with ``strip=False`` and ``math`` or\n  ``svg`` tags and one or more of the RCDATA tags ``script``,\n  ``noscript``, ``style``, ``noframes``, ``iframe``, ``noembed``, or\n  ``xmp`` in the allowed tags whitelist were vulnerable to a mutation\n  XSS.\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "openSUSE-2021-552",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2021_0552-1.json"
      },
      {
        "category": "self",
        "summary": "URL for openSUSE-SU-2021:0552-1",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YFAKMJGUZHUTZ53ZAID6PRVP5MSLXPGV/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for openSUSE-SU-2021:0552-1",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YFAKMJGUZHUTZ53ZAID6PRVP5MSLXPGV/"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1167379",
        "url": "https://bugzilla.suse.com/1167379"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1168280",
        "url": "https://bugzilla.suse.com/1168280"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1184547",
        "url": "https://bugzilla.suse.com/1184547"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2020-6816 page",
        "url": "https://www.suse.com/security/cve/CVE-2020-6816/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2020-6817 page",
        "url": "https://www.suse.com/security/cve/CVE-2020-6817/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-23980 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-23980/"
      }
    ],
    "title": "Security update for python-bleach",
    "tracking": {
      "current_release_date": "2021-04-14T14:51:29Z",
      "generator": {
        "date": "2021-04-14T14:51:29Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "openSUSE-SU-2021:0552-1",
      "initial_release_date": "2021-04-14T14:51:29Z",
      "revision_history": [
        {
          "date": "2021-04-14T14:51:29Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "python2-bleach-3.1.5-lp152.2.3.1.noarch",
                "product": {
                  "name": "python2-bleach-3.1.5-lp152.2.3.1.noarch",
                  "product_id": "python2-bleach-3.1.5-lp152.2.3.1.noarch"
                }
              },
              {
                "category": "product_version",
                "name": "python3-bleach-3.1.5-lp152.2.3.1.noarch",
                "product": {
                  "name": "python3-bleach-3.1.5-lp152.2.3.1.noarch",
                  "product_id": "python3-bleach-3.1.5-lp152.2.3.1.noarch"
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "openSUSE Leap 15.2",
                "product": {
                  "name": "openSUSE Leap 15.2",
                  "product_id": "openSUSE Leap 15.2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:opensuse:leap:15.2"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python2-bleach-3.1.5-lp152.2.3.1.noarch as component of openSUSE Leap 15.2",
          "product_id": "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch"
        },
        "product_reference": "python2-bleach-3.1.5-lp152.2.3.1.noarch",
        "relates_to_product_reference": "openSUSE Leap 15.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python3-bleach-3.1.5-lp152.2.3.1.noarch as component of openSUSE Leap 15.2",
          "product_id": "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
        },
        "product_reference": "python3-bleach-3.1.5-lp152.2.3.1.noarch",
        "relates_to_product_reference": "openSUSE Leap 15.2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-6816",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-6816"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
          "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-6816",
          "url": "https://www.suse.com/security/cve/CVE-2020-6816"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1167379 for CVE-2020-6816",
          "url": "https://bugzilla.suse.com/1167379"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-04-14T14:51:29Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2020-6816"
    },
    {
      "cve": "CVE-2020-6817",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-6817"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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 are vulnerable to ReDoS. For example, bleach.clean(..., attributes={\u0027a\u0027: [\u0027style\u0027]}).",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
          "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-6817",
          "url": "https://www.suse.com/security/cve/CVE-2020-6817"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1168280 for CVE-2020-6817",
          "url": "https://bugzilla.suse.com/1168280"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-04-14T14:51:29Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-6817"
    },
    {
      "cve": "CVE-2021-23980",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23980"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in the default allowed tags and strip_comments defaults to True.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
          "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-23980",
          "url": "https://www.suse.com/security/cve/CVE-2021-23980"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1184547 for CVE-2021-23980",
          "url": "https://bugzilla.suse.com/1184547"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "openSUSE Leap 15.2:python2-bleach-3.1.5-lp152.2.3.1.noarch",
            "openSUSE Leap 15.2:python3-bleach-3.1.5-lp152.2.3.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-04-14T14:51:29Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2021-23980"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.