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Bug 1485265 - (CVE-2017-13686) CVE-2017-13686 kernel: NULL pointer dereference due to late check for a NULL fi field when RTM_F_FIB_MATCH is set
CVE-2017-13686 kernel: NULL pointer dereference due to late check for a NULL ...
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=20170816,repor...
: Security
Depends On:
Blocks:
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Reported: 2017-08-25 04:47 EDT by Adam Mariš
Modified: 2017-08-25 04:47 EDT (History)
47 users (show)

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Last Closed: 2017-08-25 04:47:45 EDT
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Description Adam Mariš 2017-08-25 04:47:02 EDT 
net/ipv4/route.c in the Linux kernel 4.13-rc1 through 4.13-rc6 is too
late to check for a NULL fi field when RTM_F_FIB_MATCH is set, which
allows local users to cause a denial of service (NULL pointer
dereference) or possibly have unspecified other impact via crafted
system calls. NOTE: this does not affect any stable release.

Upstream patch:

https://github.com/torvalds/linux/commit/bc3aae2bbac46dd894c89db5d5e98f7f0ef9e205
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