Buffer overflow in GNU Glibc
CVE-2018-6485
An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.
Vulnerability class: Integer 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: 0.047 (91.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.047 · newest: 0.047 · change: 0.000
Affected products
- GNU Glibc
- NetApp Cloud Backup
- NetApp Data Ontap Edge
- NetApp Element Software
- NetApp Element Software Management
- NetApp Steelstore Cloud Integrated Storage
- NetApp Storage Replication Adapter
- NetApp Vasa Provider — versions 6.x
- NetApp Virtual Storage Console
- Oracle Communications Session Border Controller — versions 8.0.0, 8.1.0, 8.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/bugzilla/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/102912 (VDB Entry, Third Party Advisory, vdb-entry)
- bugs.debian.org/878159 (Mailing List, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:3092 (vendor-advisory, Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190404-0003/ (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/4218-1/ (vendor-advisory)
- usn.ubuntu.com/4416-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2018-6485?
- CVE-2018-6485 is a critical-severity vulnerability in GNU Glibc, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-02-01.
- How severe is CVE-2018-6485?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-6485 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.