Advisories ยป MGASA-2013-0214

Updated kernel-linus package fixes multiple security vulnerabilities

Publication date: 16 Jul 2013
Type: security
Affected Mageia releases : 3
CVE: CVE-2013-0231 , CVE-2013-2850 , CVE-2013-2852


This kernel-linus update provides the extended stable kernel and
fixes the follwing security issues:

The pciback_enable_msi function in the PCI backend driver 
(drivers/xen/pciback/conf_space_capability_msi.c) in Xen for the Linux
kernel 2.6.18 and 3.8 allows guest OS users with PCI device access to
cause a denial of service via a large number of kernel log messages.
(CVE-2013-0231 / XSA-43)

Heap-based buffer overflow in the iscsi_add_notunderstood_response function
in drivers/target/iscsi/iscsi_target_parameters.c in the iSCSI target
subsystem in the Linux kernel through 3.9.4 allows remote attackers to
cause a denial of service (memory corruption and OOPS) or possibly execute
arbitrary code via a long key that is not properly handled during
construction of an error-response packet.
A reproduction case requires patching open-iscsi to send overly large
keys. Performing discovery in a loop will Oops the remote server.

Format string vulnerability in the b43_request_firmware function in
drivers/net/wireless/b43/main.c in the Broadcom B43 wireless driver in
the Linux kernel through 3.9.4 allows local users to gain privileges by
leveraging root access and including format string specifiers in an
fwpostfix modprobe parameter, leading to improper construction of an
error message. (CVE-2013-2852)

Other fixes:
- enable support for more touchscreens
- disable COMPAT_VDSO (not needed since glibc-2.3.3)

For other fixes in the extended stable update, see the referenced shortlog