CVE-2016-9843
CRITICAL
9.8
CVSS Score
Published: May 23, 2017 at 03:56 AM UTC
Updated: June 17, 2026 at 12:56 AM UTC
24 products affected across 10 vendorsmacOSDebian LinuxiPhone OS
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Severity
CRITICAL9.8
Exploit prediction
EPSS 6%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11
Affected range stops below 11, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.13.0
Affected range stops below 10.13.0, so it looks safe — our inference, not a vendor statement
v < 11.0
Affected range stops below 11.0, so it looks safe — our inference, not a vendor statement
v < 4
Affected range stops below 4, so it looks safe — our inference, not a vendor statement
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%10.0.0 ≤ v < 10.0.3710.1.0 ≤ v < 10.1.3710.2.0 ≤ v < 10.2.1910.3.0 ≤ v < 10.3.115.5.0 ≤ v < 5.5.62
Affected range stops below 10.0.37, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.1.37, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.3.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5.62, so it looks safe — our inference, not a vendor statement
v ≥ 7.3v ≥ 9.5
95%
All versions
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (33)
Vendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.htmlVendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.htmlVendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.htmlMailing Listx_refsource_MLIST
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/12/05/21x_refsource_CONFIRM
Source: [email protected]
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlx_refsource_CONFIRM
Source: [email protected]
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlx_refsource_CONFIRM
Source: [email protected]
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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