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USN-4007-1 Not scored

linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerability

Federico Manuel Bento discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid a.out binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid a.out binary. As a hardening measure, this update disables a.out support.

Exploit probability Not scored
Published June 4, 2019
Required by Not available
Last source change April 22, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:18.04:LTS linux

29 explicit affected versions

Ubuntu:18.04:LTS linux-aws

24 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

22 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

23 explicit affected versions

Ubuntu:18.04:LTS linux-oem

20 explicit affected versions

Ubuntu:18.04:LTS linux-oracle

6 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

25 explicit affected versions

Ubuntu:18.04:LTS linux-snapdragon

5 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-4007-1

Federico Manuel Bento discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid a.out binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid a.out binary. As a hardening measure, this update disables a.out support.

View original source

05 / REFERENCES

Further evidence