GLSA-202210-42 : zlib: Multiple vulnerabilities

critical Nessus Plugin ID 166743

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Description

The remote host is affected by the vulnerability described in GLSA-202210-42 (zlib: Multiple vulnerabilities)

- zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches. (CVE-2018-25032)

- zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference). (CVE-2022-37434)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

All zlib users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=sys-libs/zlib-1.2.12-r3

Plugin Details

Severity: Critical

ID: 166743

File Name: gentoo_GLSA-202210-42.nasl

Version: 1.2

Type: local

Family: Gentoo Local Security Checks

Published: 10/31/2022

Updated: 10/31/2022

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2018-25032

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: E:U/RL:O/RC:C

CVSS Score Source: CVE-2022-37434

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:zlib, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2022

Vulnerability Publication Date: 3/25/2022

Reference Information

CVE: CVE-2018-25032, CVE-2022-37434