Bug 996380 (CVE-2013-4220) - CVE-2013-4220 Kernel: arm64: unhandled esr by el0_sync_compat
Summary: CVE-2013-4220 Kernel: arm64: unhandled esr by el0_sync_compat
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2013-4220
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: 996383
Blocks: 979016
TreeView+ depends on / blocked
 
Reported: 2013-08-13 05:39 UTC by Prasad Pandit
Modified: 2021-02-17 07:25 UTC (History)
29 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-10 05:21:12 UTC
Embargoed:

Attachments (Terms of Use)

Description Prasad Pandit 2013-08-13 05:39:02 UTC 
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 Pandit 2013-08-13 05:43:44 UTC 
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 Pandit 2013-08-13 05:45:37 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 996383]
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