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OVAL

ALAS2-2018-1038 --- kernel perf python-perf

ID: oval:org.secpod.oval:def:1700051Date: (C)2018-06-12   (M)2024-02-19
Class: PATCHFamily: unix




An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load Store instructions . It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessors data cache even for speculatively executed instructions that never actually commit . As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks.By mmaping a FUSE-backed file onto a processs memory containing command line arguments , an attacker can cause utilities from psutils or procps or any other program which makes a read call to the /proc/lt;pidgt;/cmdline files to block indefinitely or for some controlled time .

Platform:
Amazon Linux 2
Product:
kernel
perf
python-perf
Reference:
ALAS2-2018-1038
CVE-2018-1120
CVE-2018-3639
CVE-2018-3693
CVE    3
CVE-2018-3693
CVE-2018-1120
CVE-2018-3639
CPE    4
cpe:/o:linux:linux_kernel
cpe:/a:perf:perf
cpe:/a:python-perf:python-perf
cpe:/o:amazon:linux:2
...

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