CVE-2021-3537

MEDIUM5.9EPSS 0.11%

Nokogiri Implements libxml2 version vulnerable to null pointer dereferencing

發布日:2022/5/24修改日:2025/12/3

也稱為:GHSA-286v-pcf5-25rcALPINE-CVE-2021-3537

描述

A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.

受影響套件(3)

Alpine/libxml2from 0, < 2.9.9-r5
Debian/libxml2from 0, < 2.9.10+dfsg-6.6
RubyGems/nokogirifrom 0, < 1.11.4

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

參考連結(16)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-3537
ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2021-3537
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-3537
PATCHhttps://github.com/sparklemotion/nokogiri
WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1956522
WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-3537.yml
WEBhttps://github.com/sparklemotion/nokogiri/blob/2edbbef95f1dc12c1ddc5ebda71b9159026245fe/CHANGELOG.md?plain=1#L722
WEBhttps://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV
WEBhttps://nokogiri.org/CHANGELOG.html#1114-2021-05-14
WEBhttps://security.gentoo.org/glsa/202107-05
WEBhttps://security.netapp.com/advisory/ntap-20210625-0002
WEBhttps://www.oracle.com/security-alerts/cpuapr2022.html
WEBhttps://www.oracle.com/security-alerts/cpujul2022.html
WEBhttps://www.oracle.com/security-alerts/cpuoct2021.html