ArchLinuxASA-202001-2[ASA-202001-2] file: arbitrary code execution
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
45.6%
Arch Linux Security Advisory ASA-202001-2
Severity: High
Date : 2020-01-09
CVE-ID : CVE-2019-18218
Package : file
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-1083
Summary
The package file before version 5.38-1 is vulnerable to arbitrary code
execution.
Resolution
Upgrade to 5.38-1.
pacman -Syu “file>=5.38-1”
The problem has been fixed upstream in version 5.38.
Workaround
None.
Description
cdf_read_property_info in cdf.c in file through 5.37 does not restrict
the number of CDF_VECTOR elements, which allows a heap-based buffer
overflow (4-byte out-of-bounds write).
Impact
An attacker is able to execute arbitrary code on the affected host by
tricking a user to process a specially crafted file via libmagic or
file.
References
https://bugs.archlinux.org/task/64430
https://github.com/file/file/commit/46a8443f76cec4b41ec736eca396984c74664f84
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16780
https://security.archlinux.org/CVE-2019-18218
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
45.6%