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Ubuntu: USN-4416-1 (CVE-2019-19126): GNU C Library vulnerabilities

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Ubuntu: USN-4416-1 (CVE-2019-19126): GNU C Library vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
11/19/2019
Created
08/07/2020
Added
08/05/2020
Modified
03/22/2023

Description

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.

Solution(s)

  • ubuntu-upgrade-libc6

References

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