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Ubuntu: USN-4416-1 (CVE-2017-18269): GNU C Library vulnerabilities

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Ubuntu: USN-4416-1 (CVE-2017-18269): GNU C Library vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
05/18/2018
Created
08/07/2020
Added
08/05/2020
Modified
05/01/2023

Description

An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.

Solution(s)

  • ubuntu-upgrade-libc6

References

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