VulnerabilityModified
CVE-2016-9843
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.
CRITICAL 9.8EPSS 5.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.77% probability · 93th percentile
- CISA KEV
- Not listed
- Affected
- zlib/zlib · opensuse/leap · opensuse/opensuse · debian/debian linux · canonical/ubuntu linux · oracle/database server · oracle/jdk · oracle/jre · oracle/mysql · redhat/satellite · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux workstation · apple/iphone os · apple/mac os x · apple/tvos · apple/watchos · netapp/active iq unified manager · netapp/oncommand insight · +4 more
- Source
- security@opentext.com
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html
- http://www.openwall.com/lists/oss-security/2016/12/05/21
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/95131
- http://www.securitytracker.com/id/1039427
- http://www.securitytracker.com/id/1041888
- https://access.redhat.com/errata/RHSA-2017:1220
- https://access.redhat.com/errata/RHSA-2017:1221
- https://access.redhat.com/errata/RHSA-2017:1222
- https://access.redhat.com/errata/RHSA-2017:2999
- https://access.redhat.com/errata/RHSA-2017:3046
- https://access.redhat.com/errata/RHSA-2017:3047
- https://access.redhat.com/errata/RHSA-2017:3453
- https://bugzilla.redhat.com/show_bug.cgi?id=1402351
- https://github.com/madler/zlib/commit/d1d577490c15a0c6862473d7576352a9f18ef811
- https://lists.debian.org/debian-lts-announce/2019/03/msg00027.html
- https://lists.debian.org/debian-lts-announce/2020/01/msg00030.html
- https://security.gentoo.org/glsa/201701-56
- https://security.gentoo.org/glsa/202007-54
- https://security.netapp.com/advisory/ntap-20181018-0002/
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/HT208115
- https://support.apple.com/HT208144
- https://usn.ubuntu.com/4246-1/
- https://usn.ubuntu.com/4292-1/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.