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Linux » Linux Kernel » 2.1.131 : Security Vulnerabilities Published In 2019 (Bypass)

Cpe Name:cpe:/o:linux:linux_kernel:2.1.131
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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2019-11190 362 Bypass 2019-04-11 2019-06-07
4.7
None Local Medium Not required Complete None None
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.
2 CVE-2019-3901 362 Bypass 2019-04-22 2019-05-28
1.9
None Local Medium Not required Partial None None
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.
Total number of vulnerabilities : 2   Page : 1 (This Page)
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