CVE-2016-6323 Information

Description

The makecontext function in the GNU C Library (aka glibc or libc6) before 2.25 creates execution contexts incompatible with the unwinder on ARM EABI (32-bit) platforms which might allow context-dependent attackers to cause a denial of service (hang) as demonstrated by applications compiled using gccgo related to backtrace generation.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-updates/2016-10/msg00009.html http://www.openwall.com/lists/oss-security/2016/08/18/12 http://www.securityfocus.com/bid/92532 http://www-01.ibm.com/support/docview.wss?uid=swg21995039 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KTXSOVCRDGBIB4WCIDAGYYUBESXZ4IGK/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LVWSAZVBTLALXF4SCBPDV3FY6J22DXLZ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WO7IMEYWZ2WTXGGMZBWWSDCUMFN63XOB/ https://security.gentoo.org/glsa/201706-19 https://sourceware.org/bugzilla/show_bug.cgi?id=20435 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9e2ff6c9cc54c0b4402b8d49e4abe7000fde7617

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5