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The remote Amazon Linux AMI host is missing a security update.
The epoll implementation in the Linux kernel 18.104.22.168 and earlier does
not properly traverse a tree of epoll file descriptors, which allows
local users to cause a denial of service (CPU consumption) via a
crafted application that makes epoll_create and epoll_ctl system
Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c
in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled,
allows local users to cause a denial of service (memory corruption and
crash) and possibly execute arbitrary code via an XFS image containing
a symbolic link with a long pathname.
crypto/ghash-generic.c in the Linux kernel before 3.1 allows local
users to cause a denial of service (NULL pointer dereference and OOPS)
or possibly have unspecified other impact by triggering a failed or
missing ghash_setkey function call, followed by a (1) ghash_update
function call or (2) ghash_final function call, as demonstrated by a
write operation on an AF_ALG socket.
See also :
Run 'yum update kernel' to update your system. You will need to reboot
your system in order for the new kernel to be running.
Risk factor :
Medium / CVSS Base Score : 6.9
Family: Amazon Linux Local Security Checks
Nessus Plugin ID: 69581 ()
CVE ID: CVE-2011-1083CVE-2011-4077CVE-2011-4081
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