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

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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
09/12/2020

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

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