CVE-2017-1000101

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`.

How to fix CVE-2017-1000101

To remediate CVE-2017-1000101, upgrade the affected package to a fixed version below.

• —upgrade to 7.55.0-r0 or later
• —upgrade to 7.55.0-1 or later

Is CVE-2017-1000101 being exploited?

Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 7.55.0-r0
• from 0, < 7.55.0-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2017-1000101
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2017-1000101