Buffer overflow in Gnu Glibc
CVE-2018-6551
The malloc implementation in the GNU C Library (aka glibc or libc6), from version 2.24 to 2.26 on powerpc, and only in version 2.26 on i386, did not properly handle malloc calls with arguments close to SIZE_MAX and could return a pointer t…
Vulnerability class: Integer Overflow
EPSS: 0.022 (80.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Gnu Glibc
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2018-6551?
- CVE-2018-6551 is a critical-severity vulnerability in Gnu Glibc, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-02-02.
- How severe is CVE-2018-6551?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-6551 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.