CVE-2017-16931

CWE-119 — Buffer OverflowCWE-776 — XML Entity Expansion (Billion Laughs)13 documents8 sources
Severity
9.8CRITICAL
EPSS
1.7%
top 17.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Xmlsoft Libxml2
Timeline
PublishedNov 23
Latest updateMay 13

Description

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages2 packages

▶Debianlibxml2< 2.9.4+dfsg1-3.1+3
▶NVDxmlsoft/libxml22.9.4

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-7mr2-r9fx-7j9m: parser↗2022-05-13
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CVEList
CVE-2017-16931: parser↗2017-11-23
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OSV
CVE-2017-16931: parser↗2017-11-23
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📋Vendor Advisories

3
Oracle
Oracle Oracle Systems Risk Matrix: XCP Firmware (libxml2) — CVE-2017-16931↗2021-07-15
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Red Hat
libxml2: Mishandling parameter-entity references↗2017-06-05
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Debian
CVE-2017-16931: libxml2 - parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because ...↗2017
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💬Community

6
Bugzilla
CVE-2017-16931 mingw-libxml2: libxml2: Mishandling parameter-entity references [fedora-all]↗2017-11-24
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Bugzilla
CVE-2017-16931 libxml2: Mishandling parameter-entity references↗2017-11-24
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Bugzilla
CVE-2017-16931 rubygem-nokogiri: libxml2: Mishandling parameter-entity references [epel-all]↗2017-11-24
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Bugzilla
CVE-2017-16931 mingw-libxml2: libxml2: Mishandling parameter-entity references [epel-7]↗2017-11-24
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Bugzilla
CVE-2017-16931 rubygem-nokogiri: libxml2: Mishandling parameter-entity references [fedora-all]↗2017-11-24
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CVE-2017-16931 (CRITICAL CVSS 9.8) | parser.c in libxml2 before 2.9.5 mi | cvebase.io