CVE-2016-9843

CRITICAL

zlib 1.2.8 - Info Disclosure

Title source: llm

Description

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.

References (33)

[Mailing List] http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html

[Mailing List] http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html

[Mailing List] http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/95131

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1039427

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1041888

[Mailing List] https://lists.debian.org/debian-lts-announce/2019/03/msg00027.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2020/01/msg00030.html

[Third Party Advisory] https://security.gentoo.org/glsa/201701-56

[Third Party Advisory] https://security.gentoo.org/glsa/202007-54

[Vendor Advisory] https://usn.ubuntu.com/4246-1/

[Vendor Advisory] https://usn.ubuntu.com/4292-1/

[Patch] https://github.com/madler/zlib/commit/d1d577490c15a0c6862473d7576352a9f18ef811

View Patch ZIP pw:eip

[Vendor Advisory] https://security.netapp.com/advisory/ntap-20181018-0002/

[Third Party Advisory] https://wiki.mozilla.org/MOSS/Secure_Open_Source/Completed#zlib

[Third Party Advisory] https://wiki.mozilla.org/images/0/09/Zlib-report.pdf

[Mailing List] http://www.openwall.com/lists/oss-security/2016/12/05/21

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:1220

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:1221

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:1222

... and 13 more

Scores

CVSS v3 9.8

EPSS 0.0798

EPSS Percentile 91.9%

Attack Vector NETWORK

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

Classification

Status draft

Affected Products (36)

zlib/zlib < 1.2.9

opensuse/leap

opensuse/opensuse

debian/debian_linux

canonical/ubuntu_linux

oracle/database_server

oracle/jdk

oracle/jre

oracle/mysql < 5.5.61

... and 21 more

Timeline

Published May 23, 2017

Tracked Since Feb 18, 2026