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rubygemsRubySecRUBY:NOKOGIRI-2021-3537
HistoryMay 23, 2022 - 9:00 p.m.

Nokogiri Implements libxml2 version vulnerable to null pointer dereferencing

2022-05-2321:00:00
RubySec
rubysec.com
13
nokogiri
libxml2
vulnerability
parsing xml
null pointer
system availability
software

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

JSON

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.

Affected configurations

Vulners
Node
rubynokogiri_gemRange<1.11.4
VendorProductVersionCPE
rubynokogiri_gem*cpe:2.3:a:ruby:nokogiri_gem:*:*:*:*:*:*:*:*

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openvas 23
nessus 37
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amazon 2
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suse 1
debian 1
altlinux 1
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rocky 1
almalinux 1
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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

JSON
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