CVE-2017-9050

libxml2: Heap-based buffer over-read in function xmlDictAddString

Published May 18, 2017 CVSS 3.1 · 7.5 High EPSS 4.6% KEV · Not listed
Description
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1008-1 libxml2 security update
Debian DSA Debian DSA DSA-3952-1 libxml2 security update
EUVD EUVD EUVD-2017-0361 libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.
Github GHSA Github GHSA GHSA-8c56-cpmw-89x7 Out-of-bounds read in nokogiri
Ubuntu USN Ubuntu USN USN-3424-1 libxml2 vulnerabilities
Ubuntu USN Ubuntu USN USN-3424-2 libxml2 vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-122
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00365}

epss

{'score': 0.00335}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 6:30 AM
Reserved
May 18, 2017, 12:00 AM
Status
Modified
Published
May 18, 2017, 6:29 AM
Modified
Oct 14, 2026, 7:16 AM
Severity
Moderate
Public date
May 15, 2017, 12:00 AM