rhsa-2014_0100
Vulnerability from csaf_redhat
Published
2014-01-28 17:38
Modified
2024-11-22 07:59
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
Updated kernel-rt packages that fix multiple security issues and several
bugs are now available for Red Hat Enterprise MRG 2.4.
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.
Details
The kernel-rt packages contain the Linux kernel, the core of any Linux
operating system.
* A flaw was found in the way the Linux kernel's TCP/IP protocol suite
implementation handled sending of certain UDP packets over sockets that
used the UDP_CORK option when the UDP Fragmentation Offload (UFO) feature
was enabled on the output device. A local, unprivileged user could use this
flaw to cause a denial of service or, potentially, escalate their
privileges on the system. (CVE-2013-4470, Important)
* A flaw was found in the way the perf_trace_event_perm() function in the
Linux kernel checked permissions for the function tracer functionality.
An unprivileged local user could use this flaw to enable function tracing
and cause a denial of service on the system. (CVE-2013-2930, Moderate)
* A flaw was found in the way the net_ctl_permissions() function in the
Linux kernel checked access permissions. A local, unprivileged user could
potentially use this flaw to access certain files in /proc/sys/net
regardless of the underlying file system permissions. (CVE-2013-4270,
Moderate)
* A flaw was found in the way the Linux kernel's Adaptec RAID controller
(aacraid) checked permissions of compat IOCTLs. A local attacker could use
this flaw to bypass intended security restrictions. (CVE-2013-6383,
Moderate)
* A flaw was found in the way the get_dumpable() function return value was
interpreted in the ptrace subsystem of the Linux kernel. When
'fs.suid_dumpable' was set to 2, a local, unprivileged local user could
use this flaw to bypass intended ptrace restrictions and obtain
potentially sensitive information. (CVE-2013-2929, Low)
* An invalid pointer dereference flaw was found in the Marvell 8xxx
Libertas WLAN (libertas) driver in the Linux kernel. A local user able to
write to a file that is provided by the libertas driver and located on the
debug file system (debugfs) could use this flaw to crash the system. Note:
The debugfs file system must be mounted locally to exploit this issue.
It is not mounted by default. (CVE-2013-6378, Low)
* A NULL pointer dereference flaw was found in the Linux kernel's IPv6
source address-based routing implementation. A local attacker who has the
CAP_NET_ADMIN capability could use this flaw to crash the system.
(CVE-2013-6431, Low)
Red Hat would like to thank Hannes Frederic Sowa for reporting
CVE-2013-4470. The CVE-2013-4270 issue was discovered by Miroslav Vadkerti
of Red Hat.
This update also fixes multiple bugs. Documentation for these changes will
be available shortly from the Technical Notes document linked to in the
References section.
Users should upgrade to these updated packages, which upgrade the kernel-rt
kernel to version kernel-rt-3.8.13-rt27, correct these issues, and fix the
bugs noted in the Red Hat Enterprise MRG 2 Technical Notes. The system must
be rebooted for this update to take effect.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "The kernel-rt packages contain the Linux kernel, the core of any Linux\noperating system.\n\n* A flaw was found in the way the Linux kernel\u0027s TCP/IP protocol suite\nimplementation handled sending of certain UDP packets over sockets that\nused the UDP_CORK option when the UDP Fragmentation Offload (UFO) feature\nwas enabled on the output device. A local, unprivileged user could use this\nflaw to cause a denial of service or, potentially, escalate their\nprivileges on the system. (CVE-2013-4470, Important)\n\n* A flaw was found in the way the perf_trace_event_perm() function in the\nLinux kernel checked permissions for the function tracer functionality.\nAn unprivileged local user could use this flaw to enable function tracing\nand cause a denial of service on the system. (CVE-2013-2930, Moderate)\n\n* A flaw was found in the way the net_ctl_permissions() function in the\nLinux kernel checked access permissions. A local, unprivileged user could\npotentially use this flaw to access certain files in /proc/sys/net\nregardless of the underlying file system permissions. (CVE-2013-4270,\nModerate)\n\n* A flaw was found in the way the Linux kernel\u0027s Adaptec RAID controller\n(aacraid) checked permissions of compat IOCTLs. A local attacker could use\nthis flaw to bypass intended security restrictions. (CVE-2013-6383,\nModerate)\n\n* A flaw was found in the way the get_dumpable() function return value was\ninterpreted in the ptrace subsystem of the Linux kernel. When\n\u0027fs.suid_dumpable\u0027 was set to 2, a local, unprivileged local user could\nuse this flaw to bypass intended ptrace restrictions and obtain\npotentially sensitive information. (CVE-2013-2929, Low)\n\n* An invalid pointer dereference flaw was found in the Marvell 8xxx\nLibertas WLAN (libertas) driver in the Linux kernel. A local user able to\nwrite to a file that is provided by the libertas driver and located on the\ndebug file system (debugfs) could use this flaw to crash the system. Note:\nThe debugfs file system must be mounted locally to exploit this issue.\nIt is not mounted by default. (CVE-2013-6378, Low)\n\n* A NULL pointer dereference flaw was found in the Linux kernel\u0027s IPv6\nsource address-based routing implementation. A local attacker who has the\nCAP_NET_ADMIN capability could use this flaw to crash the system.\n(CVE-2013-6431, Low)\n\nRed Hat would like to thank Hannes Frederic Sowa for reporting\nCVE-2013-4470. The CVE-2013-4270 issue was discovered by Miroslav Vadkerti\nof Red Hat.\n\nThis update also fixes multiple bugs. Documentation for these changes will\nbe available shortly from the Technical Notes document linked to in the\nReferences section.\n\nUsers should upgrade to these updated packages, which upgrade the kernel-rt\nkernel to version kernel-rt-3.8.13-rt27, correct these issues, and fix the\nbugs noted in the Red Hat Enterprise MRG 2 Technical Notes. The system must\nbe rebooted for this update to take effect.",
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"title": "kernel: net: fib: fib6_add: potential NULL pointer dereference"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.