Buffer overflow in GNU Glibc
CVE-2018-11237
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000
Affected products
- GNU Glibc
- NetApp Data Ontap Edge
- NetApp Element Software Management
- Oracle Communications Session Border Controller — versions 8.0.0, 8.1.0, 8.2.0
- Oracle Enterprise Communications Broker — versions 3.0.0, 3.1.0
- Canonical Ubuntu Linux — versions 16.04, 18.04, 19.10
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
- Red Hat Virtualization Host — versions 4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/bugzilla/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.exploit-db.com/exploits/44750/ (VDB Entry, Third Party Advisory, exploit, Broken Link)
- www.securityfocus.com/bid/104256 (vdb-entry, Broken Link)
- access.redhat.com/errata/RHSA-2018:3092 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190329-0001/ (Broken Link)
- security.netapp.com/advisory/ntap-20190401-0001/ (Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (Patch, Third Party Advisory)
- access.redhat.com/errata/RHBA-2019:0327 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4416-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11237?
- CVE-2018-11237 is a high-severity vulnerability in GNU Glibc, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-05-18.
- How severe is CVE-2018-11237?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-11237 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.