Rapid7 Vulnerability & Exploit Database

Ubuntu: USN-3534-1 (CVE-2017-17426): GNU C Library vulnerabilities

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Ubuntu: USN-3534-1 (CVE-2017-17426): GNU C Library vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
12/05/2017
Created
07/25/2018
Added
01/18/2018
Modified
03/25/2022

Description

The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, potentially leading to a subsequent heap overflow. This occurs because the per-thread cache (aka tcache) feature enables a code path that lacks an integer overflow check.

Solution(s)

  • ubuntu-upgrade-libc6

References

  • USN-3534-1
  • USN-3536-1
  • USN-4768-1
  • CVE-2017-17426

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;