CVE & CISA-KEV Catalog

CVE-2017-1000101

MEDIUMEPSS 89th pctl
6.5
CVSS v3
NVD

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

Remediation Available
curlDebian
Fixed in:7.55.0-1CVE-2017-1000101
Fixed in:7.55.0-1CVE-2017-1000101
Fixed in:7.55.0-1CVE-2017-1000101
Fixed in:7.55.0-1CVE-2017-1000101
curlUbuntu
Fixed in:7.35.0-1ubuntu2.11USN-3441-1
Fixed in:7.47.0-1ubuntu2.3USN-3441-1
libcurl3Ubuntu
Fixed in:7.35.0-1ubuntu2.11USN-3441-1
Fixed in:7.47.0-1ubuntu2.3USN-3441-1
libcurl3-gnutlsUbuntu
Fixed in:7.35.0-1ubuntu2.11USN-3441-1
Fixed in:7.47.0-1ubuntu2.3USN-3441-1
libcurl3-nssUbuntu
Fixed in:7.35.0-1ubuntu2.11USN-3441-1
Fixed in:7.47.0-1ubuntu2.3USN-3441-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploit Intelligence

3.88%probability of exploitation in 30 days
89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.