CVE-2016-6323

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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/[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

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

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

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
149140EulerOS 2.0 SP3 : glibc (EulerOS-SA-2021-1790)NessusHuawei Local Security Checks
high
100945GLSA-201706-19 : GNU C Library: Multiple vulnerabilities (Stack Clash)NessusGentoo Local Security Checks
high
97936Ubuntu 12.04 LTS : eglibc regression (USN-3239-3)NessusUbuntu Local Security Checks
high
97887Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : eglibc, glibc regression (USN-3239-2)NessusUbuntu Local Security Checks
high
97856Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : eglibc, glibc vulnerabilities (USN-3239-1)NessusUbuntu Local Security Checks
high
94822Fedora 25 : glibc-arm-linux-gnu (2016-7befbe5e19)NessusFedora Local Security Checks
high
94809Fedora 25 : glibc (2016-57cba655d5)NessusFedora Local Security Checks
high
94186Fedora 23 : glibc-arm-linux-gnu (2016-b4c1b24a74)NessusFedora Local Security Checks
high
94148Fedora 24 : glibc-arm-linux-gnu (2016-7e57edc4cc)NessusFedora Local Security Checks
high
93852openSUSE Security Update : glibc (openSUSE-2016-1149)NessusSuSE Local Security Checks
high
93329Fedora 23 : glibc (2016-87dde780b8)NessusFedora Local Security Checks
high
93056Fedora 24 : glibc (2016-5f050a0a6d)NessusFedora Local Security Checks
high