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prionPRIOn knowledge basePRION:CVE-2019-11190
HistoryApr 12, 2019 - 12:29 a.m.

Race condition

2019-04-1200:29:00
PRIOn knowledge base
www.prio-n.com
4

5.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

CPENameOperatorVersion
linux_kernellt4.8