n 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://").
| Link | Resource |
|---|---|
| http://openwall.com/lists/oss-security/2017/06/14/1 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/99120 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038697 | |
| https://curl.haxx.se/docs/adv_20170614.html | Vendor Advisory |
| http://openwall.com/lists/oss-security/2017/06/14/1 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/99120 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038697 | |
| https://curl.haxx.se/docs/adv_20170614.html | Vendor Advisory |
21 Nov 2024, 03:36
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://openwall.com/lists/oss-security/2017/06/14/1 - Mailing List, Third Party Advisory | |
| References | () http://www.securityfocus.com/bid/99120 - Third Party Advisory, VDB Entry | |
| References | () http://www.securitytracker.com/id/1038697 - | |
| References | () https://curl.haxx.se/docs/adv_20170614.html - Vendor Advisory |
Published : 2017-06-14 13:29
Updated : 2025-04-20 01:37
NVD link : CVE-2017-9502
Mitre link : CVE-2017-9502
CVE.ORG link : CVE-2017-9502
JSON object : View
Improper Restriction of Operations within the Bounds of a Memory Buffer