CVE-2016-9594 : curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's

curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable.

Published 2018-04-23 19:29:00

Updated 2019-10-09 23:20:38

Source Red Hat, Inc.

View at NVD, CVE.org

Products affected by CVE-2016-9594

Haxx » Curl
Versions before (<) 7.52.1
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-9594

EPSS FAQ

1.15%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 77 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-9594

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	Red Hat, Inc.
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
8.1	HIGH	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	2.2	5.9	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	3.9	2.5	Red Hat, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2016-9594

CWE-665 Improper Initialization

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.
Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)

References for CVE-2016-9594

https://security.gentoo.org/glsa/201701-47

cURL: Multiple vulnerabilities (GLSA 201701-47) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594

1408385 – (CVE-2016-9594) CVE-2016-9594 curl: Unitialized random
Issue Tracking;Third Party Advisory
https://www.tenable.com/security/tns-2017-04

[R5] SecurityCenter 5.4.3 Fixes Multiple Vulnerabilities - Security Advisory | Tenable®
Third Party Advisory

CVEs referencing this url
https://curl.haxx.se/docs/adv_20161223.html

curl - uninitialized random - CVE-2016-9594
Vendor Advisory
http://www.securityfocus.com/bid/95094

cURL/libcURL CVE-2016-9594 Remote Security Bypass Vulnerability
Third Party Advisory;VDB Entry
http://www.securitytracker.com/id/1037528

cURL Initialization Error in CURLcode randit() Generates Weak or Non-Random Numbers - SecurityTracker
VDB Entry;Third Party Advisory

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Vulnerability Details : CVE-2016-9594

Products affected by CVE-2016-9594

Exploit prediction scoring system (EPSS) score for CVE-2016-9594

CVSS scores for CVE-2016-9594

CWE ids for CVE-2016-9594

References for CVE-2016-9594