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ubuntucveUbuntu.comUB:CVE-2018-13096
HistoryJul 03, 2018 - 12:00 a.m.

CVE-2018-13096

2018-07-0300:00:00
ubuntu.com
ubuntu.com
18

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

64.8%

An issue was discovered in fs/f2fs/super.c in the Linux kernel through
4.14. A denial of service (out-of-bounds memory access and BUG) can occur
upon encountering an abnormal bitmap size when mounting a crafted f2fs
image.

Notes

Author Note
sbeattie git commit fix subject “f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize”
tyhicks The affected user base for this issue is likely small since f2fs is not the default filesystem and it is not widely used in Ubuntu
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-58.64UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-139.165UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1047.49UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1034.37UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1072.82UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1047.49~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.18.0-1011.11~18.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1055.60UNKNOWN
ubuntu18.04noarchlinux-azure-edge< 4.18.0-1011.11~18.04.1UNKNOWN
ubuntu16.04noarchlinux-azure-edge< 4.15.0-1055.60UNKNOWN
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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

64.8%