Bug 1058748 (CVE-2014-1690) - CVE-2014-1690 Kernel: netfilter: nf_nat: leakage of uninitialized buffer in IRC NAT helper
Summary: CVE-2014-1690 Kernel: netfilter: nf_nat: leakage of uninitialized buffer in I...
Alias: CVE-2014-1690
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1058782 1058783 1058784 1058786
Blocks: 1053179
TreeView+ depends on / blocked
Reported: 2014-01-28 13:23 UTC by Prasad Pandit
Modified: 2023-05-12 15:43 UTC (History)
29 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-04-28 17:35:44 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:0439 0 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2014-04-28 20:43:50 UTC

Description Prasad Pandit 2014-01-28 13:23:24 UTC
Linux kernel built with the NetFilter Connection Tracking(NF_CONNTRACK)
support for IRC protocol(NF_NAT_IRC), is vulnerable to an information leakage
flaw. It could occur when communicating over direct client-to-client IRC
connection(/dcc) via a NAT-ed network. Kernel attempts to mangle IRC TCP
packet's content, wherein an uninitialised 'buffer' object is copied to a
socket buffer and sent over to the other end of a connection.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
  -> https://git.kernel.org/linus/2690d97ade05c5325cbf7c72b94b90d265659886

Comment 1 Prasad Pandit 2014-01-28 13:27:28 UTC

This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.

Comment 2 Prasad Pandit 2014-01-28 14:05:12 UTC

This issue was discovered by Daniel Borkmann of Red Hat Inc.

Comment 5 Prasad Pandit 2014-01-28 14:18:45 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1058786]

Comment 6 errata-xmlrpc 2014-04-28 16:53:56 UTC
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:0439 https://rhn.redhat.com/errata/RHSA-2014-0439.html

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