CVE-2017-1000101

MEDIUM

curl - Heap-Based Buffer Overflow via URL Globbing Range Parsing

Title source: llm

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`.

References (7)

Core 7

Core References

Vendor Advisory x_refsource_confirm

https://support.apple.com/HT208221

Vendor Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2018:3558

Issue Tracking, Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/201709-14

Issue Tracking, Vendor Advisory x_refsource_confirm

https://curl.haxx.se/docs/adv_20170809A.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1039117

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/100249

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2017/dsa-3992

Scores

CVSS v3 6.5

EPSS 0.0066

EPSS Percentile 71.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-119

Status published

Products (32)

haxx/curl 7.4.1

haxx/curl 7.35.0

haxx/curl 7.36.0

haxx/curl 7.37.0

haxx/curl 7.37.1

haxx/curl 7.38.0

haxx/curl 7.39.0

haxx/curl 7.40.0

haxx/curl 7.41.0

haxx/curl 7.42.0

... and 22 more

Published Oct 05, 2017

Tracked Since Feb 18, 2026