CVE-2016-6323

MEDIUM

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.

References

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/[email protected]/message/KTXSOVCRDGBIB4WCIDAGYYUBESXZ4IGK/

https://lists.fedoraproject.org/archives/list/package-ann[email protected]/message/LVWSAZVBTLALXF4SCBPDV3FY6J22DXLZ/

https://lists.fedoraproject.org/archives/list/[email protected]/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

Details

Source: MITRE

Published: 2016-10-07

Updated: 2018-10-30

Type: CWE-284

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH