CVE & CISA-KEV Catalog

CVE-2016-9843

CRITICALEPSS 92th pctl
9.8
CVSS v3
NVD

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.

How to fix

Remediation Available
rsyncDebian
Fixed in:3.1.3-6CVE-2016-9843
Fixed in:3.1.3-6CVE-2016-9843
Fixed in:3.1.3-6CVE-2016-9843
Fixed in:3.1.3-6CVE-2016-9843
klibcUbuntu
Fixed in:2.0.3-0ubuntu1.14.04.3+esm4USN-7959-1
Fixed in:2.0.4-8ubuntu1.16.04.4+esm3USN-7959-1
Fixed in:2.0.4-9ubuntu2.2+esm2USN-7959-1
Fixed in:2.0.7-1ubuntu5.2+esm1USN-7959-1
Fixed in:2.0.10-4ubuntu0.2USN-7959-1
Fixed in:2.0.13-4ubuntu0.2USN-7959-1
Fixed in:2.0.14-1ubuntu1.1USN-7959-1
klibc-utilsUbuntu
Fixed in:2.0.3-0ubuntu1.14.04.3+esm4USN-7959-1
Fixed in:2.0.4-8ubuntu1.16.04.4+esm3USN-7959-1
Fixed in:2.0.4-9ubuntu2.2+esm2USN-7959-1
Fixed in:2.0.7-1ubuntu5.2+esm1USN-7959-1
Fixed in:2.0.10-4ubuntu0.2USN-7959-1
Fixed in:2.0.13-4ubuntu0.2USN-7959-1
Fixed in:2.0.14-1ubuntu1.1USN-7959-1
lib32z1Ubuntu
Fixed in:1:1.2.8.dfsg-2ubuntu4.3USN-4246-1
lib64z1Ubuntu
Fixed in:1:1.2.8.dfsg-2ubuntu4.3USN-4246-1
libklibcUbuntu
Fixed in:2.0.3-0ubuntu1.14.04.3+esm4USN-7959-1
Fixed in:2.0.4-8ubuntu1.16.04.4+esm3USN-7959-1
Fixed in:2.0.4-9ubuntu2.2+esm2USN-7959-1
Fixed in:2.0.7-1ubuntu5.2+esm1USN-7959-1
Fixed in:2.0.10-4ubuntu0.2USN-7959-1
Fixed in:2.0.13-4ubuntu0.2USN-7959-1
Fixed in:2.0.14-1ubuntu1.1USN-7959-1
libx32z1Ubuntu
Fixed in:1:1.2.8.dfsg-2ubuntu4.3USN-4246-1
rsyncUbuntu
Fixed in:3.1.1-3ubuntu1.3USN-4292-1
Fixed in:3.1.2-2.1ubuntu1.1USN-4292-1
zlibUbuntu
Fixed in:1:1.2.8.dfsg-2ubuntu4.3USN-4246-1
zlib1gUbuntu
Fixed in:1:1.2.8.dfsg-2ubuntu4.3USN-4246-1
MariaDBWindows application
Affected:10.0.0 10.0.37Fixed in:10.0.37MariaDB Corporation Ab
Affected:10.2.0 10.2.19Fixed in:10.2.19MariaDB Corporation Ab
Affected:10.1.0 10.1.37Fixed in:10.1.37MariaDB Corporation Ab
Affected:10.3.0 10.3.11Fixed in:10.3.11MariaDB Corporation Ab
Affected:5.5.0 5.5.62Fixed in:5.5.62MariaDB Corporation Ab
Node.jsWindows application
Affected:7.0.0 7.6.0Fixed in:7.6.0Node.js Foundation
Affected:4.2.0 4.8.2Fixed in:4.8.2Node.js Foundation
Affected:6.9.0 6.10.2Fixed in:6.10.2Node.js Foundation
Node.js (LTS)Windows application
Affected:4.2.0 4.8.2Fixed in:4.8.2Node.js Foundation
Affected:7.0.0 7.6.0Fixed in:7.6.0Node.js Foundation
Affected:6.9.0 6.10.2Fixed in:6.10.2Node.js Foundation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

5.95%probability of exploitation in 30 days
92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.