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ubuntucveUbuntu.comUB:CVE-2017-5551
HistoryFeb 06, 2017 - 12:00 a.m.

CVE-2017-5551

2017-02-0600:00:00
ubuntu.com
ubuntu.com
25

3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

0.0004 Low

EPSS

Percentile

10.1%

The simple_set_acl function in fs/posix_acl.c in the Linux kernel before
4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs
filesystem, which allows local users to gain group privileges by leveraging
the existence of a setgid program with restrictions on execute permissions.
NOTE: this vulnerability exists because of an incomplete fix for
CVE-2016-7097.

Notes

Author Note
jdstrand android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support
OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchlinux<Β 4.4.0-67.88UNKNOWN
ubuntu16.10noarchlinux<Β 4.8.0-59.64UNKNOWN
ubuntu16.04noarchlinux-aws<Β 4.4.0-1009.18UNKNOWN
ubuntu16.04noarchlinux-hwe<Β 4.10.0-27.30~16.04.2UNKNOWN
ubuntu18.04noarchlinux-hwe-edge<Β 4.18.0-8.9~18.04.1UNKNOWN
ubuntu16.04noarchlinux-hwe-edge<Β 4.10.0-27.30~16.04.2UNKNOWN
ubuntu14.04noarchlinux-lts-xenial<Β 4.4.0-67.88~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2<Β 4.4.0-1048.55UNKNOWN
ubuntu16.10noarchlinux-raspi2<Β 4.8.0-1043.47UNKNOWN
ubuntu16.04noarchlinux-snapdragon<Β 4.4.0-1051.55UNKNOWN
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3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

0.0004 Low

EPSS

Percentile

10.1%