Vulnerability Details : CVE-2016-8618

The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.

Vulnerability category: Memory Corruption

Published 2018-07-31 21:29:00

Updated 2018-11-13 11:29:04

Source Red Hat, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2016-8618

Probability of exploitation activity in the next 30 days: 1.29%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 84 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2016-8618

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low 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	[email protected]
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
9.8	CRITICAL	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
5.3	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	3.9	1.4	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2016-8618

CWE-415 Double Free

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

Assigned by: [email protected] (Primary)
CWE-416 Use After Free

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

Assigned by: [email protected] (Secondary)

References for CVE-2016-8618

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618

Issue Tracking;Patch;Third Party Advisory
https://security.gentoo.org/glsa/201701-47

Third Party Advisory

CVEs referencing this url
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

CVEs referencing this url
https://www.tenable.com/security/tns-2016-21

Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2018:3558

CVEs referencing this url
https://curl.haxx.se/docs/adv_20161102D.html

Patch;Vendor Advisory
http://www.securityfocus.com/bid/94098

Third Party Advisory;VDB Entry
https://access.redhat.com/errata/RHSA-2018:2486

Third Party Advisory

CVEs referencing this url
http://www.securitytracker.com/id/1037192

Third Party Advisory;VDB Entry

CVEs referencing this url

Products affected by CVE-2016-8618

Haxx » Curl
Versions before (<) 7.51.0
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Matching versions