In curl before 7.54.1 on Windows and DOS, libcurl's default protocol function, which is the logic that allows an application to set which protocol libcurl should attempt to use when given a URL without a scheme part, had a flaw that could lead to it overwriting a heap based memory buffer with seven bytes. If the default protocol is specified to be FILE or a file: URL lacks two slashes, the given "URL" starts with a drive letter, and libcurl is built for Windows or DOS, then libcurl would copy the path 7 bytes off, so that the end of the given path would write beyond the malloc buffer (7 bytes being the length in bytes of the ascii string "file://").
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-06-14T13:00:00

Updated: 2024-08-05T17:11:01.654Z

Reserved: 2017-06-07T00:00:00

Link: CVE-2017-9502

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-06-14T13:29:00.747

Modified: 2024-11-21T03:36:16.997

Link: CVE-2017-9502

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-06-14T00:00:00Z

Links: CVE-2017-9502 - Bugzilla