Alpine: zlib: security update to 1.2.11-r0

critical Tenable Cloud Security Plugin ID 407965

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging
improper pointer arithmetic. (CVE-2016-9840)

- inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging
improper pointer arithmetic. (CVE-2016-9841)

- The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have
unspecified impact via vectors involving left shifts of negative integers. (CVE-2016-9842)

- The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have
unspecified impact via vectors involving big-endian CRC calculation. (CVE-2016-9843)

See Also

https://security.alpinelinux.org/vuln/CVE-2016-9840

https://security.alpinelinux.org/vuln/CVE-2016-9841

https://security.alpinelinux.org/vuln/CVE-2016-9842

https://security.alpinelinux.org/vuln/CVE-2016-9843

Plugin Details

Severity: Critical

ID: 407965

Version: Revision 1.32

Type: Local

Published: 10/31/2023

Updated: 1/22/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.82

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-9843

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/4/2016

Reference Information

CVE: CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843

BID: 95131

IAVA: 2020-A-0328