cnvd - cnvd-2021-37600

cnvd-2021-37600

Vulnerability from cnvd

Title: libxml2缓冲区溢出漏洞（CNVD-2021-37600）

Description:

libxml2是一款使用C语言编写的用于解析XML文档的函数库。

libxml2中entities.c存在缓冲区溢出漏洞，攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity: 高

Patch Name: libxml2缓冲区溢出漏洞（CNVD-2021-37600）的补丁

Patch Description:

libxml2是一款使用C语言编写的用于解析XML文档的函数库。

libxml2中entities.c存在缓冲区溢出漏洞，攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://bugzilla.redhat.com/show_bug.cgi?id=1954232

Reference: https://www.auscert.org.au/bulletins/ESB-2021.1547

Impacted products

Name
libxml2 libxml2 <2.9.11

Show details on source website

JSON

To clipboard

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      "cveNumber": "CVE-2021-3517"
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  "openTime": "2021-05-28",
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}

CVE-2021-3517 (GCVE-0-2021-3517)

Vulnerability from cvelistv5

Published

2021-05-19 13:45

Modified

2024-08-03 16:53

Severity ?

CWE

CWE-787

Summary

There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.

References

▼	URL	Tags
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/	vendor-advisory, x_refsource_FEDORA
	https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html	mailing-list, x_refsource_MLIST
	https://bugzilla.redhat.com/show_bug.cgi?id=1954232	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/	vendor-advisory, x_refsource_FEDORA
	https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	mailing-list, x_refsource_MLIST
	https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	mailing-list, x_refsource_MLIST
	https://security.gentoo.org/glsa/202107-05	vendor-advisory, x_refsource_GENTOO
	https://security.netapp.com/advisory/ntap-20210625-0002/	x_refsource_CONFIRM
	https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20211022-0004/	x_refsource_CONFIRM
	https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	libxml2	Version: libxml2 2.9.11

Show details on NVD website

JSON

To clipboard

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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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