Vulnerability in GNU Glibc
CVE-2016-6323
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000
Affected products
- GNU Glibc
- Fedoraproject Fedora — versions 23, 24, 25
- openSUSE — versions 13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.securityfocus.com/bid/92532 (vdb-entry)
- www-01.ibm.com/support/docview.wss
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- sourceware.org/bugzilla/show_bug.cgi (Issue Tracking)
- sourceware.org/git/gitweb.cgi
- security.gentoo.org/glsa/201706-19 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2016/08/18/12 (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2016-10/msg00009.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-6323?
- CVE-2016-6323 is a high-severity vulnerability in GNU Glibc, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-10-07.
- How severe is CVE-2016-6323?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-6323 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.