CVE-2015-8778

critical
Published 2016-04-19 · Modified 2026-05-06
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
7.5
VIR risk
9.8

Description

Integer overflow in the GNU C Library (aka glibc or libc6) before 2.23 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via the size argument to the __hcreate_r function, which triggers out-of-bounds heap-memory access.

Predictions

Exploit likelihood
97%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-8778

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://www.sourceware.org/ml/libc-alpha/2016-02/msg00502.html

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2.21-8
debian debianbullseyefixed2.21-8
debian debianforkyfixed2.21-8
debian debiansidfixed2.21-8
debian debiantrixiefixed2.21-8
debian debian8.0affected
fedora fedora23affected
ubuntu ubuntu12.04affected
ubuntu ubuntu14.04affected
ubuntu ubuntu15.10affected
suse suse13.2affected
suse suse11affected
suse suse12affected

Application impact

VendorProductVersionsFixed
gnuglibc{"endIncluding":"2.22"}
suse suselinux_enterprise_debuginfo11

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.