CVE-2017-1000101

Publication date 4 October 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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`.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	17.04 zesty	Fixed 7.52.1-4ubuntu1.2
	16.04 LTS xenial	Fixed 7.47.0-1ubuntu2.3
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.11

Notes

sbeattie

only affects curl command line tool, not libcurl introduced in 7.34.0

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
curl	Upstream: https://curl.haxx.se/CVE-2017-1000101.patch Upstream: 453e7a7

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3441-1
curl vulnerabilities
10 October 2017