National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-9502 Detail

Current Description

In curl before 7.54.1 on Windows and DOS, libcurl's default protocol function, which is the logic that allows an application to set which protocol libcurl should attempt to use when given a URL without a scheme part, had a flaw that could lead to it overwriting a heap based memory buffer with seven bytes. If the default protocol is specified to be FILE or a file: URL lacks two slashes, the given "URL" starts with a drive letter, and libcurl is built for Windows or DOS, then libcurl would copy the path 7 bytes off, so that the end of the given path would write beyond the malloc buffer (7 bytes being the length in bytes of the ascii string "file://").

Source:  MITRE
Description Last Modified:  06/14/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L (V3 legend)
Impact Score: 1.4
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2017/06/14/1 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/99120 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038697
https://curl.haxx.se/docs/adv_20170614.html Vendor Advisory

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*    versions up to (including) 7.54.0

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-9502
NVD Published Date:
06/14/2017
NVD Last Modified:
07/07/2017