CVE-2017-1000101
The URL is stored in a heap based buffer, so it could then be made to wrongly read something else instead of crashing.
Does this matter?
Lower severity and a low EPSS score (3.72%). Track it; it rarely justifies an emergency change on its own.
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`.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 3.72% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- haxx/curl
- Source
- cve@mitre.org
EPSS 3.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3992
- http://www.securityfocus.com/bid/100249Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039117Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3558
- https://curl.haxx.se/docs/adv_20170809A.htmlIssue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201709-14Issue Tracking, Third Party Advisory
- https://support.apple.com/HT208221
- http://www.debian.org/security/2017/dsa-3992
- http://www.securityfocus.com/bid/100249Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039117Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3558
- https://curl.haxx.se/docs/adv_20170809A.htmlIssue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201709-14Issue Tracking, Third Party Advisory
- https://support.apple.com/HT208221
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.