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Amazon Linux AMI: CVE-2017-1000101: Security patch for curl (ALAS-2017-889)

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Amazon Linux AMI: CVE-2017-1000101: Security patch for curl (ALAS-2017-889)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
08/31/2017
Created
07/25/2018
Added
12/20/2017
Modified
05/03/2019

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`.

Solution(s)

  • amazon-linux-upgrade-curl

References

  • amazon-linux-upgrade-curl

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