Out-of-Bounds Affecting curl-debuginfo package, versions <0:7.51.0-9.75.amzn1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Sept 2021
- disclosed5 Oct 2017
Introduced: 5 Oct 2017
CVE-2017-1000101 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 curl-debuginfo to version 0:7.51.0-9.75.amzn1 or higher.
This issue was patched in ALAS-2017-889.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl-debuginfo package and not the curl-debuginfo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 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.
References
- http://www.securityfocus.com/bid/100249
- https://curl.haxx.se/docs/adv_20170809A.html
- https://support.apple.com/HT208221
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000101
- http://www.debian.org/security/2017/dsa-3992
- https://security.gentoo.org/glsa/201709-14
- https://access.redhat.com/errata/RHSA-2018:3558
- http://www.securitytracker.com/id/1039117