cnvd - cnvd-2015-07529

cnvd-2015-07529

Vulnerability from cnvd

Title: MIT krb5 lib/gssapi/spnego/spnego_mech.c拒绝服务漏洞

Description:

MIT Kerberos是一款广泛使用的超强加密来验证客户端和服务器端的网络协议。

MIT Kerberos 5 (krb5) 1.14之前版本的lib/gssapi/spnego/spnego_mech.c存在安全漏洞，远程攻击者用构造的SPNEGO报文，在gss_inquire_context调用中被错误处理时，会造成指针读错误、进程崩溃，导致拒绝服务。

Severity: 高

Patch Name: MIT krb5 lib/gssapi/spnego/spnego_mech.c拒绝服务漏洞的补丁

Patch Description:

MIT Kerberos是一款广泛使用的超强加密来验证客户端和服务器端的网络协议。

MIT Kerberos 5 (krb5) 1.14之前版本的lib/gssapi/spnego/spnego_mech.c存在安全漏洞，远程攻击者用构造的SPNEGO报文，在gss_inquire_context调用中被错误处理时，会造成指针读错误、进程崩溃，导致拒绝服务。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:

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://krbdev.mit.edu/rt/Ticket/Display.html?id=8244

Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2695 https://github.com/krb5/krb5/commit/e04f0283516e80d2f93366e0d479d13c9b5c8c2a

Impacted products

Name
MIT Kerberos 5 <1.14

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-2695"
    }
  },
  "description": "MIT Kerberos\u662f\u4e00\u6b3e\u5e7f\u6cdb\u4f7f\u7528\u7684\u8d85\u5f3a\u52a0\u5bc6\u6765\u9a8c\u8bc1\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684\u7f51\u7edc\u534f\u8bae\u3002\r\n\r\nMIT Kerberos 5 (krb5) 1.14\u4e4b\u524d\u7248\u672c\u7684lib/gssapi/spnego/spnego_mech.c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u7528\u6784\u9020\u7684SPNEGO\u62a5\u6587\uff0c\u5728gss_inquire_context\u8c03\u7528\u4e2d\u88ab\u9519\u8bef\u5904\u7406\u65f6\uff0c\u4f1a\u9020\u6210\u6307\u9488\u8bfb\u9519\u8bef\u3001\u8fdb\u7a0b\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "ghudson",
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  "patchName": "MIT krb5 lib/gssapi/spnego/spnego_mech.c\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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  "title": "MIT krb5 lib/gssapi/spnego/spnego_mech.c\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-2695 (GCVE-0-2015-2695)

Vulnerability from cvelistv5

Published

2015-11-09 02:00

Modified

2024-08-06 05:24

Severity ?

CWE

Summary

lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted SPNEGO packet that is mishandled during a gss_inquire_context call.

References

▼	URL	Tags
	http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00007.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html	vendor-advisory, x_refsource_SUSE
	https://github.com/krb5/krb5/commit/b51b33f2bc5d1497ddf5bd107f791c101695000d	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201611-14	vendor-advisory, x_refsource_GENTOO
	http://www.securitytracker.com/id/1034084	vdb-entry, x_refsource_SECTRACK
	http://krbdev.mit.edu/rt/Ticket/Display.html?id=8244	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html	vendor-advisory, x_refsource_SUSE
	http://www.securityfocus.com/bid/90687	vdb-entry, x_refsource_BID
	http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html	vendor-advisory, x_refsource_SUSE
	http://www.debian.org/security/2015/dsa-3395	vendor-advisory, x_refsource_DEBIAN
	http://www.ubuntu.com/usn/USN-2810-1	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

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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