7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.0%
Severity: High
Date : 2022-04-04
CVE-ID : CVE-2018-25032
Package : zlib
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-2657
The package zlib before version 1:1.2.12-1 is vulnerable to arbitrary
code execution.
Upgrade to 1:1.2.12-1.
The problem has been fixed upstream in version 1.2.12.
None.
An out-of-bounds access flaw was found in zlib before 1.2.12, which
allows memory corruption when deflating (ex: when compressing) if the
input has many distant matches. For some rare inputs with a large
number of distant matches (crafted payloads), the buffer into which the
compressed or deflated data is written can overwrite the distance
symbol table which it overlays. This issue results in corrupted output
due to invalid distances, which leads to out-of-bound access,
corrupting the memory and crashing the application or potentially
execute arbitrary code.
A remote attacker is able to use a specially crafted input to crash an
application that is using zlib or potentially execute arbitrary code on
the affected host.
https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531
https://github.com/madler/zlib/issues/605
https://www.openwall.com/lists/oss-security/2022/03/24/1
https://www.openwall.com/lists/oss-security/2022/03/26/1
https://security.archlinux.org/CVE-2018-25032
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.0%