Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2017-1000101

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
05/10/2017
Last modified:
20/04/2025

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`.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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

Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:haxx:curl:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.35.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.36.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.37.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.37.1:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.38.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.39.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.40.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.41.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.42.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.42.1:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.43.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.44.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.45.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:curl:7.46.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools