Bug 996380 - (CVE-2013-4220) CVE-2013-4220 Kernel: arm64: unhandled esr by el0_sync_compat
CVE-2013-4220 Kernel: arm64: unhandled esr by el0_sync_compat
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20130524,repor...
: Security
Depends On: 996383
Blocks: 979016
  Show dependency treegraph
 
Reported: 2013-08-13 01:39 EDT by Prasad J Pandit
Modified: 2015-07-31 03:09 EDT (History)
29 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2014-06-10 01:21:12 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Prasad J Pandit 2013-08-13 01:39:02 EDT
Linux kernel built for the ARM64(CONFIG_ARM64) platform is vulnerable to a
crash when the processor generates trap/esr, that is not handled gracefully,
which leads to bad_mode(), wherein it'll die() or oops().

A user/program could use this flaw to crash the kernel resulting in DoS.

Upstream fixes:
===============
  -> https://git.kernel.org/linus/381cc2b9705512ee7c7f1839cbdde374625a2a9f
  -> https://git.kernel.org/linus/9955ac47f4ba1c95ecb6092aeaefb40a22e99268

Reference:
==========
  -> http://www.openwall.com/lists/oss-security/2013/08/08/12
Comment 1 Prasad J Pandit 2013-08-13 01:43:44 EDT
Statement:

Not vulnerable.

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG 2.
Comment 2 Prasad J Pandit 2013-08-13 01:45:37 EDT
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 996383]

Note You need to log in before you can comment on or make changes to this bug.