Linux kernel built with the networking support(CONFIG_NET) is vulnerable to an information leakage flaw in the socket layer. It could occur while doing recvmsg(2), recvfrom(2) socket calls. It occurs due to improperly initialised msg_name & msg_namelen message header parameters. A user/program could use this flaw to leak kernel memory bytes. Upstream fix: ------------- -> https://git.kernel.org/linus/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c Original 'CVE-2013-6463' assigned to this issue has been rejected and the following 6 have been assigned for the same: - CVE-2013-7266 (drivers/isdn/mISDN/socket.c), - CVE-2013-7267 (net/appletalk/ddp.c), - CVE-2013-7268 (net/ipx/af_ipx.c), - CVE-2013-7269 (net/netrom/af_netrom.c), - CVE-2013-7270 (net/packet/af_packet.c), - CVE-2013-7271 (net/x25/af_x25.c) == Name: CVE-2013-6463 ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271. Reason: This candidate is a duplicate of CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, and CVE-2013-7271. Notes: All CVE users should reference CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, and/or CVE-2013-7271 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage. ===
Statement CVE-2013-7266: This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2. Statement CVE-2013-7267: 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. Statement CVE-2013-7268: 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. Statement CVE-2013-7269: 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. Statement CVE-2013-7270: This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Statement CVE-2013-7271: 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.
Acknowledgement: Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1039874]
kernel-3.12.5-200.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
kernel-3.12.5-302.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2014:0328 https://rhn.redhat.com/errata/RHSA-2014-0328.html