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ubuntucveUbuntu.comUB:CVE-2018-14634
HistorySep 25, 2018 - 12:00 a.m.

CVE-2018-14634

2018-09-2500:00:00
ubuntu.com
ubuntu.com
21

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

9.7%

JSON

An integer overflow flaw was found in the Linux kernel’s
create_elf_tables() function. An unprivileged local user with access to
SUID (or otherwise privileged) binary could use this flaw to escalate their
privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are
believed to be vulnerable.

Notes

Author Note
tyhicks “Only kernels with commit b6a2fea39318 (“mm: variable length argument support”, from July 19, 2007) but without commit da029c11e6b1 (“exec: Limit arg stack to at most 75% of _STK_LIM”, from July 7, 2017) are exploitable.” This flaw can only be exploited on systems with greater than 32 GB of RAM
OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchlinux< 3.13.0-160.210UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-93.116UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1032.41UNKNOWN
ubuntu16.04noarchlinux-euclid< 4.4.0-9029.31UNKNOWN
ubuntu16.04noarchlinux-gcp< 4.13.0-1002.5UNKNOWN
ubuntu16.04noarchlinux-hwe< 4.13.0-26.29~16.04.2UNKNOWN
ubuntu16.04noarchlinux-hwe-edge< 4.13.0-26.29~16.04.2UNKNOWN
ubuntu16.04noarchlinux-kvm< 4.4.0-1007.12UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-93.116~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2< 4.4.0-1071.79UNKNOWN
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7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

9.7%

JSON
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