The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.
References
Configurations
History
21 Nov 2024, 02:59
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html - | |
| References | () http://www.securityfocus.com/bid/94105 - Third Party Advisory, VDB Entry | |
| References | () http://www.securitytracker.com/id/1037192 - Third Party Advisory, VDB Entry | |
| References | () https://access.redhat.com/errata/RHSA-2018:2486 - Third Party Advisory | |
| References | () https://access.redhat.com/errata/RHSA-2018:3558 - | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8622 - Issue Tracking, Patch, Third Party Advisory | |
| References | () https://curl.haxx.se/docs/adv_20161102H.html - Patch, Vendor Advisory | |
| References | () https://security.gentoo.org/glsa/201701-47 - Third Party Advisory | |
| References | () https://www.tenable.com/security/tns-2016-21 - Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : 7.5
v3 : 3.7 |
Information
Published : 2018-07-31 21:29
Updated : 2024-11-21 02:59
NVD link : CVE-2016-8622
Mitre link : CVE-2016-8622
CVE.ORG link : CVE-2016-8622
JSON object : View
Products Affected
haxx
- libcurl