cnvd - cnvd-2017-08297

cnvd-2017-08297

Vulnerability from cnvd

Title: GNU C Library 'xdr_bytes'和'xdr_string'函数拒绝服务漏洞

Description:

GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。

GNU C Library 2.25版本中的'xdr_bytes'和'xdr_string'函数存在拒绝服务漏洞，该漏洞源于程序未能正确的处理缓冲区反序列化错误。远程攻击者可利用该漏洞通过向111端口发送特制的UDP数据包造成拒绝服务（虚拟内存分配或内存消耗）。

Severity: 高

Patch Name: GNU C Library 'xdr_bytes'和'xdr_string'函数拒绝服务漏洞的补丁

Patch Description:

GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。

GNU C Library 2.25版本中的'xdr_bytes'和'xdr_string'函数存在拒绝服务漏洞，该漏洞源于程序未能正确的处理缓冲区反序列化错误。远程攻击者可利用该漏洞通过向111端口发送特制的UDP数据包造成拒绝服务（虚拟内存分配或内存消耗）。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:

用户可参考如下厂商提供的安全补丁以修复该漏洞: https://www.gnu.org/

Reference: http://www.openwall.com/lists/oss-security/2017/05/05/2 https://nvd.nist.gov/vuln/detail/CVE-2017-8804

Impacted products

Name
Gnu C Library 2.25

Show details on source website

JSON

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CVE-2017-8804 (GCVE-0-2017-8804)

Vulnerability from cvelistv5

Published

2017-05-07 18:00

Modified

2024-08-05 16:48

Severity ?

CWE

Summary

The xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP packet to port 111, a related issue to CVE-2017-8779. NOTE: [Information provided from upstream and references

References

▼	URL	Tags
	https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7	x_refsource_CONFIRM
	https://sourceware.org/ml/libc-alpha/2017-05/msg00105.html	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/98339	vdb-entry, x_refsource_BID
	https://sourceware.org/bugzilla/show_bug.cgi?id=21461	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2017/05/05/2	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00049.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00039.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00026.html	vendor-advisory, x_refsource_SUSE
	https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00128.html	x_refsource_MISC
	https://sourceware.org/legacy-ml/libc-alpha/2017-05/msg00129.html	x_refsource_MISC
	https://seclists.org/oss-sec/2017/q2/228	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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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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