Bug 1595835 (CVE-2018-12714) - CVE-2018-12714 kernel: slab out-of-bounds write in trace/trace_events_filter.c
Summary: CVE-2018-12714 kernel: slab out-of-bounds write in trace/trace_events_filter.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-12714
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1595836 1595837
Blocks: 1595838
TreeView+ depends on / blocked
 
Reported: 2018-06-27 15:05 UTC by Laura Pardo
Modified: 2019-09-29 14:43 UTC (History)
45 users (show)

Fixed In Version: kernel 4.18-rc2
Doc Type: If docs needed, set a value
Doc Text:
An issue was discovered in the Linux kernel in the filter parsing code in kernel/trace/trace_events_filter.c. The code could be called with no filter when it expected at least one, which allows attackers to cause a slab out-of-bounds write and so a denial of service via crafted perf_event_open and mmap system calls.
Clone Of:
Environment:
Last Closed: 2018-07-09 16:06:28 UTC


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Description Laura Pardo 2018-06-27 15:05:55 UTC
An issue was discovered in the Linux kernel in the filter parsing code in kernel/trace/trace_events_filter.c. The code could be called with no filter, when it expected at least one. This allows attackers to cause a slab out-of-bounds write and so a denial of service via crafted perf_event_open and mmap system calls.

References:

https://bugzilla.kernel.org/show_bug.cgi?id=200019 	

https://marc.info/?l=linux-kernel&m=152973006431221&w=2

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=70303420b5721c38998cf987e6b7d30cc62d4ff1

Comment 1 Laura Pardo 2018-06-27 15:07:02 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1595837]


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