Buffer overflow in GNU Glibc
CVE-2015-8778
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.057 (93.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.057 · change: +0.002
Affected products
- GNU Glibc
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0
- Fedoraproject Fedora — versions 23
- openSUSE — versions 13.2
- SUSE Linux Enterprise Debuginfo — versions 11
- SUSE Linux Enterprise Desktop — versions 11, 12
- SUSE Linux Enterprise Server — versions 11, 12
- SUSE Linux Enterprise Software Development Kit — versions 11, 12
- SUSE Linux Enterprise Server — versions 12
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2016-May/184626.html (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1916 (vendor-advisory)
- www.debian.org/security/2016/dsa-3481 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html (vendor-advisory, Third Party Advisory)
- sourceware.org/bugzilla/show_bug.cgi (Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0680.html (vendor-advisory)
- www.ubuntu.com/usn/USN-2985-2 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/01/20/1 (mailing-list, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-8778?
- CVE-2015-8778 is a critical-severity vulnerability in GNU Glibc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2016-04-19.
- How severe is CVE-2015-8778?
- Critical severity. CVSS v3 base score is 9.8 out of 10.