CVE-2017-1000101

curl: URL globbing out of bounds read

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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`.

curl es compatible con el "globbing" de URL, donde un usuario puede pasar un rango numérico para hacer que la herramienta itere sobre esos números para realizar una secuencia de transferencias. En la función de "globbing" que analiza sintácticamente el rango numérico, hay una omisión que hace que curl lea un byte más allá del fin de la URL si se proporciona una URL manipulada o simplemente mal escrita. La URL se almacena en un búfer basado en memoria dinámica (heap) para que se pueda hacer luego de tal manera que lea erróneamente otra cosa en vez de cerrarse inesperadamente. A continuación se muestra un ejemplo de una URL que desencadena este fallo: "http://ur%20[0-60000000000000000000".

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-09 CVE Published
2017-10-03 CVE Reserved
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125: Out-of-bounds Read

CAPEC

References (9)

URL	Tag	Source
http://www.securityfocus.com/bid/100249	Third Party Advisory
http://www.securitytracker.com/id/1039117	Third Party Advisory
https://support.apple.com/HT208221	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3992	2018-11-13
https://access.redhat.com/errata/RHSA-2018:3558	2018-11-13
https://curl.haxx.se/docs/adv_20170809A.html	2018-11-13
https://security.gentoo.org/glsa/201709-14	2018-11-13
https://access.redhat.com/security/cve/CVE-2017-1000101	2018-11-13
https://bugzilla.redhat.com/show_bug.cgi?id=1478309	2018-11-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.4.1 Search vendor "Haxx" for product "Curl" and version "7.4.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.35.0 Search vendor "Haxx" for product "Curl" and version "7.35.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.36.0 Search vendor "Haxx" for product "Curl" and version "7.36.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.37.0 Search vendor "Haxx" for product "Curl" and version "7.37.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.37.1 Search vendor "Haxx" for product "Curl" and version "7.37.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.38.0 Search vendor "Haxx" for product "Curl" and version "7.38.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.39.0 Search vendor "Haxx" for product "Curl" and version "7.39.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.40.0 Search vendor "Haxx" for product "Curl" and version "7.40.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.41.0 Search vendor "Haxx" for product "Curl" and version "7.41.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.42.0 Search vendor "Haxx" for product "Curl" and version "7.42.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.42.1 Search vendor "Haxx" for product "Curl" and version "7.42.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.43.0 Search vendor "Haxx" for product "Curl" and version "7.43.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.44.0 Search vendor "Haxx" for product "Curl" and version "7.44.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.45.0 Search vendor "Haxx" for product "Curl" and version "7.45.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.46.0 Search vendor "Haxx" for product "Curl" and version "7.46.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.47.0 Search vendor "Haxx" for product "Curl" and version "7.47.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.47.1 Search vendor "Haxx" for product "Curl" and version "7.47.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.48.0 Search vendor "Haxx" for product "Curl" and version "7.48.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.49.0 Search vendor "Haxx" for product "Curl" and version "7.49.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.49.1 Search vendor "Haxx" for product "Curl" and version "7.49.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.50.0 Search vendor "Haxx" for product "Curl" and version "7.50.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.50.1 Search vendor "Haxx" for product "Curl" and version "7.50.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.50.2 Search vendor "Haxx" for product "Curl" and version "7.50.2"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.50.3 Search vendor "Haxx" for product "Curl" and version "7.50.3"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.51.0 Search vendor "Haxx" for product "Curl" and version "7.51.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.52.0 Search vendor "Haxx" for product "Curl" and version "7.52.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.52.1 Search vendor "Haxx" for product "Curl" and version "7.52.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.53.0 Search vendor "Haxx" for product "Curl" and version "7.53.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.53.1 Search vendor "Haxx" for product "Curl" and version "7.53.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.54.0 Search vendor "Haxx" for product "Curl" and version "7.54.0"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.54.1 Search vendor "Haxx" for product "Curl" and version "7.54.1"		-		Affected
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				7.55.0 Search vendor "Haxx" for product "Curl" and version "7.55.0"		-		Affected