Vulnerability-Lookup

CNVD-2017-37714

Vulnerability from cnvd - Published: 2017-12-21

Title

libxml2 parser.c文件拒绝服务漏洞

Description

libxml2是GNOME项目组所研发的一个基于C语言的用来解析XML文档的函数库，它支持多种编码格式、Xpath解析、Well-formed和valid验证等。 libxml2 2.9.5之前的版本中的parser.c文件存在拒绝服务漏洞，该漏洞源于程序在参数实体中未能阻止无限递归。攻击者可利用该漏洞造成拒绝服务（无限循环或内存耗尽）。

Severity

中

Patch Name

libxml2 parser.c文件拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/GNOME/libxml2/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-16932

Impacted products

Name
XMLSoft Libxml2 <2.9.5

Show details on source website

JSON

To clipboard

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CVE-2017-16932 (GCVE-0-2017-16932)

Vulnerability from cvelistv5 – Published: 2017-11-23 21:00 – Updated: 2026-01-22 18:00

Summary

parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-04 13:30 UTC

CWE

n/a
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

mitre mitre root

References

12 references

URL	Tags
https://blog.clamav.net/2018/07/clamav-01001-has-…
https://lists.debian.org/debian-lts-announce/2017…	mailing-list
http://xmlsoft.org/news.html
https://usn.ubuntu.com/3739-1/	vendor-advisory
https://github.com/GNOME/libxml2/commit/899a5d9f0…
https://bugzilla.gnome.org/show_bug.cgi?id=759579
https://lists.apache.org/thread.html/rf4c02775860…	mailing-list
https://lists.apache.org/thread.html/r58af02e294b…	mailing-list
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://gitlab.gnome.org/GNOME/libxml2/-/commit/8…
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLISTx_transferred
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLISTx_transferred

Date Public

2017-11-23 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.