CVE-2016-6323

Upstream information

CVE-2016-6323 at MITRE

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.

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SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores

	National Vulnerability Database	SUSE
Base Score	5	1.5
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:P	AV:L/AC:M/Au:S/C:N/I:N/A:P
Access Vector	Network	Local
Access Complexity	Low	Medium
Authentication	None	Single
Confidentiality Impact	None	None
Integrity Impact	None	None
Availability Impact	Partial	Partial

CVSS v3 Scores

	National Vulnerability Database
Base Score	7.5
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector	Network
Access Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	None
Integrity Impact	None
Availability Impact	High
CVSSv3 Version	3

SUSE Bugzilla entry: 994359 [RESOLVED / FIXED]

SUSE Security Advisories:

• openSUSE-SU-2016:2443-1, published Tue, 4 Oct 2016 16:10:05 +0200 (CEST)

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Module for Basesystem 15	glibc >= 2.26-11.8 glibc-32bit >= 2.26-11.8 glibc-devel >= 2.26-11.8 glibc-extra >= 2.26-11.8 glibc-i18ndata >= 2.26-11.8 glibc-info >= 2.26-11.8 glibc-locale >= 2.26-11.8 glibc-locale-32bit >= 2.26-11.8 glibc-profile >= 2.26-11.8 nscd >= 2.26-11.8	Patchnames: SUSE Linux Enterprise Module for Basesystem 15 GA glibc
SUSE Linux Enterprise Module for Basesystem 15 SP1	glibc >= 2.26-13.19.1 glibc-32bit >= 2.26-13.19.1 glibc-devel >= 2.26-13.19.1 glibc-extra >= 2.26-13.19.1 glibc-i18ndata >= 2.26-13.19.1 glibc-info >= 2.26-13.19.1 glibc-locale >= 2.26-13.19.1 glibc-locale-32bit >= 2.26-8.21 glibc-locale-base >= 2.26-13.19.1 glibc-profile >= 2.26-13.19.1 nscd >= 2.26-13.19.1	Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP1 GA glibc SUSE Linux Enterprise Module for Basesystem 15 SP1 GA glibc-32bit SUSE Linux Enterprise Module for Basesystem 15 SP1 GA glibc-locale-32bit
SUSE Linux Enterprise Module for Development Tools 15	glibc-devel-32bit >= 2.26-11.8 glibc-devel-static >= 2.26-11.8 glibc-utils >= 2.26-11.8	Patchnames: SUSE Linux Enterprise Module for Development Tools 15 GA glibc-devel-32bit
SUSE Linux Enterprise Module for Development Tools 15 SP1	glibc-devel-32bit >= 2.26-8.21 glibc-devel-static >= 2.26-13.19.1 glibc-utils >= 2.26-13.19.1	Patchnames: SUSE Linux Enterprise Module for Development Tools 15 SP1 GA glibc-devel-32bit
openSUSE Leap 15.0	glibc >= 2.26-lp150.10.13 glibc-32bit >= 2.26-lp150.10.13 glibc-extra >= 2.26-lp150.10.13 glibc-locale >= 2.26-lp150.10.13 glibc-locale-32bit >= 2.26-lp150.10.13 nscd >= 2.26-lp150.10.13	Patchnames: openSUSE Leap 15.0 GA glibc

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Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
SUSE Linux Enterprise Desktop 12 SP1	glibc	Not affected
SUSE Linux Enterprise Server 11 SP2 LTSS	glibc	Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS	glibc	Not affected
SUSE Linux Enterprise Server 11 SP4	glibc	Not affected
SUSE Linux Enterprise Server 12 GA LTSS	glibc	Not affected
SUSE Linux Enterprise Server 12 SP1	glibc	Not affected