Bodo Möller, Thai Duong and Krzysztof Kotowicz of Google discovered a flaw in the design of SSL version 3.0 that would allow an attacker to calculate the plaintext of secure connections, allowing, for example, secure HTTP cookies to be stolen.

References: http://googleonlinesecurity.blogspot.com/2014/10/this-poodle-bites-exploiting-ssl-30.html https://www.openssl.org/~bodo/ssl-poodle.pdf

kernel/auditsc.c in the Linux kernel through 3.14.5, when CONFIGAUDITSYSCALL is enabled with certain syscall rules, allows local users to obtain potentially sensitive single-bit values from kernel memory or cause a denial of service (OOPS) via a large value of a syscall number.

It was reported [1] that SSSD improperly expanded group membership when it encountered a non-POSIX group in the group membership chain. For instance:

user -> posixgroup1 -> nonposixgroup -> posixgroup2

With the group memberships noted above, SSSD should include the user as a member of both posixgroup1 and posixgroup2, however due to the position of the non-POSIX group, SSSD halts processing at it and never reaches posixgroup2, leaving the user as a member of posixgroup1 and not posixgroup2.

SSSD has the capability to set a 'deny' ACL for both users and groups, so in a situation like that illustrated above, if posixgroup2 was present in a 'deny' ACL, the user would be granted access because they are not shown as having membership in the denied group. This could grant unintended access to certain users in an environment where non-POSIX groups are used in addition to POSIX groups.

There is currently no patch to correct this issue.

[1] https://lists.fedorahosted.org/pipermail/sssd-devel/2014-May/019495.html

Luci in Red Hat Conga does not properly enforce the user session timeout, which might allow attackers to gain access to the session by reading the ac session cookie. NOTE: this issue has been SPLIT due to different vulnerability types. Use CVE-2012-3359 for the base64-encoded storage of the user and password in a cookie.

epan/dissectors/packet-afp.c in the AFP dissector in Wireshark 1.4.x before 1.4.15, 1.6.x before 1.6.10, and 1.8.x before 1.8.2 allows remote attackers to cause a denial of service (loop and CPU consumption) via a large number of ACL entries.

The dissectpft function in epan/dissectors/packet-dcp-etsi.c in the DCP ETSI dissector in Wireshark 1.4.x before 1.4.15, 1.6.x before 1.6.10, and 1.8.x before 1.8.2 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a zero-length message.

The CTDB dissector in Wireshark 1.4.x before 1.4.15, 1.6.x before 1.6.10, and 1.8.x before 1.8.2 allows remote attackers to cause a denial of service (loop and CPU consumption) via a malformed packet.

The CIP dissector in Wireshark 1.4.x before 1.4.15, 1.6.x before 1.6.10, and 1.8.x before 1.8.2 allows remote attackers to cause a denial of service (memory consumption) via a malformed packet.

Wireshark 1.4.x before 1.4.11 and 1.6.x before 1.6.5 does not properly perform certain string conversions, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet, related to epan/tostr.c.

The ExecShield feature in a certain Red Hat patch for the Linux kernel in Red Hat Enterprise Linux (RHEL) 5 and 6 and Fedora 15 and 16 does not properly handle use of many shared libraries by a 32-bit executable file, which makes it easier for context-dependent attackers to bypass the ASLR protection mechanism by leveraging a predictable base address for one of these libraries.

It was reported that Luci's (Luci is a web based front-end component of the Conga cluster management system) user session timeout feature depended only on JavaScript script running in the user's browser. If user closed browser tab without logging out of Luci session and without closing browser, they could re-open Luci web interface and continue using the session even after the timeout period has elapsed.

References: http://sourceware.org/cluster/conga/

Acknowledgement:

Red Hat would like to thank George Hedfors of Cybercom Sweden East AB for reporting this issue.

It was found that the yum-rhn-plugin caches sensitive authentication information in the world-readable /var/spool/up2date/loginAuth.pkl file. This information could be used to download packages from Red Hat Network (Hosted or Satellite) or otherwise manipulate the package list associated with the system's profile, which could possibly prevent new errata from being installed.

Paolo Bonzini found a bug in Xen hypervisor that can be used to crash the guest. Malicious guest userspace process can trick the hypervisor into emulating instruction that causes the crash if it has access to an MMIO region. The bug can be exploited because of an inconsistency between instruction decoding tables and the actual MMIO instruction decoder implementation.

A certain Red Hat configuration step for the qla2xxx driver in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when NPort ID Virtualization (NPIV) hardware is used, sets world-writable permissions for the (1) vportcreate and (2) vportdelete files under /sys/class/scsihost/, which allows local users to make arbitrary changes to SCSI host attributes by modifying these files.