9.8

CVE-2016-8622

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Haxx ≫ Libcurl Version < 7.51.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 4.67% 0.906
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
secalert@redhat.com 3.7 2.2 1.4
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
https://security.gentoo.org/glsa/201701-47
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2486
Third Party Advisory
https://www.tenable.com/security/tns-2016-21
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3558
http://www.securitytracker.com/id/1037192
Third Party Advisory
VDB Entry
http://www.securityfocus.com/bid/94105
Third Party Advisory
VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8622
Patch
Third Party Advisory
Issue Tracking
https://curl.haxx.se/docs/adv_20161102H.html
Patch
Vendor Advisory