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Advisory details: gitlab / nuget/libxml2/CVE-2017-9049
Advisory ID gitlab/nuget/libxml2/CVE-2017-9049
Aliases CVE-2017-9049
Summary Out-of-bounds Read libxml2 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-125 Out-of-bounds Read
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv2 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libxml2/CVE-2017-9049.yml
cvssv3 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libxml2/CVE-2017-9049.yml
Reference id Reference type URL
CVE-2017-9049 https://nvd.nist.gov/vuln/detail/CVE-2017-9049
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libxml2/CVE-2017-9049.yml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libxml2/CVE-2017-9049.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-18T14:20:28Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2017/9xxx/CVE-2017-9049.json

Source Advisory: vulnrichment/CVE-2017-9049

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]