Summary
halfdog discovered that OverlayFS, when mounting on top of a FUSE mount,
incorrectly propagated file attributes, including setuid. A local
unprivileged attacker could use this to gain privileges. (CVE-2016-1576)
halfdog discovered that OverlayFS in the Linux kernel incorrectly
propagated security sensitive extended attributes, such as
POSIX ACLs. A local unprivileged attacker could use this to gain
privileges. (CVE-2016-1575)
It was discovered that the Linux kernel keyring subsystem contained a race
between read and revoke operations. A local attacker could use this to
cause a denial of service (system crash). (CVE-2015-7550)
郭永刚 discovered that the Linux kernel networking implementation did
not validate protocol identifiers for certain protocol families, A local
attacker could use this to cause a denial of service (system crash) or
possibly gain administrative privileges. (CVE-2015-8543)
Dmitry Vyukov discovered that the pptp implementation in the Linux kernel
did not verify an address length when setting up a socket. A local attacker
could use this to craft an application that exposed sensitive information
from kernel memory. (CVE-2015-8569)
David Miller discovered that the Bluetooth implementation in the Linux
kernel did not properly validate the socket address length for Synchronous
Connection-Oriented (SCO) sockets. A local attacker could use this to
expose sensitive information. (CVE-2015-8575)
It was discovered that the Linux kernel's Filesystem in Userspace (FUSE)
implementation did not handle initial zero length segments properly. A
local attacker could use this to cause a denial of service (unkillable
task). (CVE-2015-8785)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | linux | 3.13.0-79.123 |
Vulnerabilities 7
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Unscored —
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semapho…
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Unscored —CVE-2015-8543 Public exploit
The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not valida…
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Unscored —
The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel through 4.3.3 do not ver…
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Unscored —
The sco_sock_bind function in net/bluetooth/sco.c in the Linux kernel before 4.3.4 does not verify an address length, w…
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Unscored —
The fuse_fill_write_pages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denia…
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Unscored —CVE-2016-1575 Public exploit
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which a…
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Unscored —CVE-2016-1576 Public exploit
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which al…
References
-
report
https://ubuntu.com/security/CVE-2015-7550
-
report
https://ubuntu.com/security/CVE-2015-8543
-
report
https://ubuntu.com/security/CVE-2015-8569
-
report
https://ubuntu.com/security/CVE-2015-8575
-
report
https://ubuntu.com/security/CVE-2015-8785
-
report
https://ubuntu.com/security/CVE-2016-1575
-
report
https://ubuntu.com/security/CVE-2016-1576