CVEvulnerability
CVE-2017-9502
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2017-06-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-119
Description
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://").
Affected configurations
• haxx curl (<= 7.54.0)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- 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 www.securitytracker.com
- 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 www.securitytracker.com
- https://curl.haxx.se/docs/adv_20170614.html Vendor Advisory