SECUFOCUSNOW
Home›CVE index›CVE-2016-9842
Review reviewHigh

CVE-2016-9842

CADRA, zlib

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.

CVSS
8.8
EPSS
5.20%
91.7% percentile
CISA KEV
Not listed
Published
2017.05.23
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability5.20%
Technical severityCVSS 8.8

Vulnerability overview

The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.

Affected product and versions

Product
CADRA, zlib
Affected versions
< V2511, >= 1.2.3.4 < 1.2.9, 42.1, 42.2, 13.2, 8.0, 16.04, 18.04, 18c, 1.6.0, 1.7.0, 1.8.0, >= 5.5.0 <= 5.5.61, >= 5.6.0 <= 5.6.41, >= 5.7.0 <= 5.7.23, >= 8.0.0 <= 8.0.12, 5.8, 6.0, 7.0, 7.4
Fixed versions
1.2.9, 11, 10.13.0, 11.0, 4, 4.8.2, 6.10.2, 7.6.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that CADRA, zlib and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-1335
CVE-2016-9842 — CADRA, zlib | SECUFOCUS NOW