CVE-2017-1000101 Information

Description

curl supports “globbing” of URLs, in which a user can pass a numerical range to have the tool iterate over those numbers to do a sequence of transfers. In the globbing function that parses the numerical range, there was an omission that made curl read a byte beyond the end of the URL if given a carefully crafted, or just wrongly written, URL. The URL is stored in a heap based buffer, so it could then be made to wrongly read something else instead of crashing. An example of a URL that triggers the flaw would be http://ur%20[0-60000000000000000000.

Vulnerability Type (CWE)

CWE-119

Published

2017-10-05

Last Modified

2018-11-13

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Base Score

6.5 MEDIUM

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

References

http://www.debian.org/security/2017/dsa-3992 http://www.securityfocus.com/bid/100249 (Third Party Advisory,VDB Entry) http://www.securitytracker.com/id/1039117 (Third Party Advisory,VDB Entry) https://access.redhat.com/errata/RHSA-2018:3558 https://curl.haxx.se/docs/adv_20170809A.html (Issue Tracking,Vendor Advisory) https://security.gentoo.org/glsa/201709-14 (Issue Tracking,Third Party Advisory) https://support.apple.com/HT208221