Bug 1060023 (CVE-2014-0038) - CVE-2014-0038 Kernel: 3.4+ arbitrary write with CONFIG_X86_X32
Summary: CVE-2014-0038 Kernel: 3.4+ arbitrary write with CONFIG_X86_X32
Alias: CVE-2014-0038
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: 1059980
TreeView+ depends on / blocked
Reported: 2014-01-31 09:35 UTC by Prasad J Pandit
Modified: 2021-02-05 18:57 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-01-31 09:58:26 UTC

Attachments (Terms of Use)

Description Prasad J Pandit 2014-01-31 09:35:03 UTC
Linux kernel(>= version 3.4+) built with the X32 ABI for 64-bit mode support
CONFIG_X86_X32, is vulnerable to an arbitrary write to a user supplied address.
X32 ABI allows 32-bit programs to run on 64-bit machines with all its features,
without using the 64-bit addressing. These programs continue to use 32-bit
memory addressing. The flaw occurs while doing a recvmmsg(2) call.

A user/program could use this flaw to crash the system resulting in DoS or
potentially escalate user privileges to a system.

Upstream fix:
 -> https://git.kernel.org/linus/2def2ef2ae5f3990aabdbe8a755911902707d268

 -> http://www.openwall.com/lists/oss-security/2014/01/31/2

Comment 1 Petr Matousek 2014-01-31 09:58:26 UTC

Not vulnerable. This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.

Comment 3 Tomas Hoger 2014-02-17 10:01:30 UTC
HackerOne report:

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