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Bug 1595835 - (CVE-2018-12714) CVE-2018-12714 kernel: slab out-of-bounds write in trace/trace_events_filter.c
CVE-2018-12714 kernel: slab out-of-bounds write in trace/trace_events_filter.c
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20180623,repor...
: Security
Depends On: 1595836 1595837
Blocks: 1595838
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Reported: 2018-06-27 11:05 EDT by Laura Pardo
Modified: 2018-07-10 14:05 EDT (History)
45 users (show)

See Also:
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.
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Clone Of:
Environment:
Last Closed: 2018-07-09 12:06:28 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Laura Pardo 2018-06-27 11:05:55 EDT 
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 11:07:02 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1595837]
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