CVE-2021-43818 (GCVE-0-2021-43818)
Vulnerability from cvelistv5
Published
2021-12-13 18:05
Modified
2024-08-04 04:03
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
References
security-advisories@github.com https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a Patch, Third Party Advisory
security-advisories@github.com https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776 Patch, Third Party Advisory
security-advisories@github.com https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0 Patch, Third Party Advisory
security-advisories@github.com https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8 Third Party Advisory
security-advisories@github.com https://lists.debian.org/debian-lts-announce/2021/12/msg00037.html Mailing List, Third Party Advisory
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUIS2KE3HZ2AAQKXFLTJFZPP2IFHJTC7/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2XMOM5PFT6U5AAXY6EFNT5JZCKKHK2V/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZGNET2A4WGLSUXLBFYKNC5PXHQMI3I7/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ4SPKJX3RRJK4UWA6FXCRHD2TVRQI44/
security-advisories@github.com https://security.gentoo.org/glsa/202208-06 Third Party Advisory
security-advisories@github.com https://security.netapp.com/advisory/ntap-20220107-0005/ Third Party Advisory
security-advisories@github.com https://www.debian.org/security/2022/dsa-5043 Third Party Advisory
security-advisories@github.com https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
security-advisories@github.com https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2021/12/msg00037.html Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUIS2KE3HZ2AAQKXFLTJFZPP2IFHJTC7/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2XMOM5PFT6U5AAXY6EFNT5JZCKKHK2V/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZGNET2A4WGLSUXLBFYKNC5PXHQMI3I7/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ4SPKJX3RRJK4UWA6FXCRHD2TVRQI44/
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/202208-06 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20220107-0005/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2022/dsa-5043 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
Impacted products
Vendor Product Version
lxml lxml Version: < 4.6.5
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Los usuarios que empleen el limpiador de HTML en un contexto relevante para la seguridad deben actualizar a lxml versi\u00f3n 4.6.5 para recibir un parche. No se presentan soluciones conocidas 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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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