Vulnerability DatabaseCVE-2021-3518
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CVE-2021-3518
May 18, 2021
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.
Affected Packages
libxml2 (CONAN):
Affected version(s) >=2.9.9 <2.9.12
Fix Suggestion:
Update to version 2.9.12
nokogiri (RUBY):
Affected version(s) >=1.0.0 <1.11.4
Fix Suggestion:
Update to version 1.11.4
Related Resources (30)
https://support.apple.com/kb/HT212604
http://seclists.org/fulldisclosure/2021/Jul/55
https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
https://www.oracle.com/security-alerts/cpujul2022.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
https://security.netapp.com/advisory/ntap-20210625-0002/
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-3518.yml
https://nokogiri.org/CHANGELOG.html#1114-2021-05-14
https://github.com/sparklemotion/nokogiri/blob/2edbbef95f1dc12c1ddc5ebda71b9159026245fe/CHANGELOG.md?plain=1#L722
https://bugzilla.redhat.com/show_bug.cgi?id=1954242
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
http://seclists.org/fulldisclosure/2021/Jul/58
https://support.apple.com/kb/HT212601
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://access.redhat.com/security/cve/CVE-2021-3518
https://security.gentoo.org/glsa/202107-05
https://nvd.nist.gov/vuln/detail/CVE-2021-3518
https://support.apple.com/kb/HT212605
https://www.oracle.com/security-alerts/cpuoct2021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/
http://seclists.org/fulldisclosure/2021/Jul/54
https://github.com/sparklemotion/nokogiri
http://seclists.org/fulldisclosure/2021/Jul/59
https://www.oracle.com/security-alerts/cpuapr2022.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV
https://security.netapp.com/advisory/ntap-20210625-0002
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
https://support.apple.com/kb/HT212602
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
CVSS v2
Base Score:
6.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Weakness Type (CWE)
Use After Free
CWE-416
EPSS
Base Score:
0.23