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Out-of-Bounds Affecting curl package, versions <7.55.0-r0

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.33% (72nd percentile)

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  • Snyk IDSNYK-ALPINE311-CURL-546059
  • published5 Oct 2017
  • disclosed5 Oct 2017
Report a new vulnerability Found a mistake?

Introduced: 5 Oct 2017

CVE-2017-1000101  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Alpine:3.11 curl to version 7.55.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.11 relevant fixed versions and status.

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.