Date: Tue, 28 Aug 2018 16:49:14 +1000 From: Wade Mealing <wmealing@...hat.com> To: oss-security@...ts.openwall.com Subject: Linux kernel: CVE-2018-14619 kernel: crash (possible privesc) in kernel crypto subsystem. Gday, Syzkaller/syzbot found a use-after-free bug in the cryptographic subsystem of the Linux kernel , that can be used to panic the system and possibly escalate privileges. The bug was introduced in commit 72548b093ee3, and has been addressed in b32a7dc8aef1882fbf983eb354837488cc9d54dc, a reproducer is available on the tail end of syzbots email to kernel list ( https://lkml.org/lkml/2017/11/27/866 ). Most RHEL kernels are not affected as they do not have the feature, but it does affect the kernel-alt package (the 4.11 based kernel for 64-bit ARM , IBM POWER9 (little endian ) and IBM z Systems ). Upstream fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc Reproducer: https://lkml.org/lkml/2017/11/27/866 Thanks. -- Wade Mealing Product Security - Kernel Red Hat
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