Summary
Mohamed Ghannam discovered that a use-after-free vulnerability existed in
the Netlink subsystem (XFRM) in the Linux kernel. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-16939)
It was discovered that the Linux kernel did not properly handle copy-on-
write of transparent huge pages. A local attacker could use this to cause a
denial of service (application crashes) or possibly gain administrative
privileges. (CVE-2017-1000405)
Fan Wu, Haoran Qiu, and Shixiong Zhao discovered that the associative array
implementation in the Linux kernel sometimes did not properly handle adding
a new entry. A local attacker could use this to cause a denial of service
(system crash). (CVE-2017-12193)
Eric Biggers discovered that the key management subsystem in the Linux
kernel did not properly restrict adding a key that already exists but is
uninstantiated. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)
It was discovered that a null pointer dereference error existed in the
PowerPC KVM implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2017-15306)
Eric Biggers discovered a race condition in the key management subsystem of
the Linux kernel around keys in a negative state. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-15951)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux-gcp | 4.13.0-1002.5 |
Vulnerabilities 6
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Unscored —CVE-2017-1000405 Public exploit
The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmd_mkdirty() in the touch_pmd() function insid…
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Unscored —
The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles n…
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Unscored —
The KEYS subsystem in the Linux kernel through 4.13.7 mishandles use of add_key for a key that already exists but is un…
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Unscored —
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local…
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Unscored —
The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus fin…
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Unscored —CVE-2017-16939 Public exploit
The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to ga…
References
-
report
https://ubuntu.com/security/CVE-2017-12193
-
report
https://ubuntu.com/security/CVE-2017-15299
-
report
https://ubuntu.com/security/CVE-2017-15306
-
report
https://ubuntu.com/security/CVE-2017-15951
-
report
https://ubuntu.com/security/CVE-2017-16939
-
report
https://ubuntu.com/security/CVE-2017-1000405