9.8

CVE-2018-8786

Exploit
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Freerdp ≫ Freerdp Version <= 1.2.0
Freerdp ≫ Freerdp Version 2.0.0 Update rc1
Freerdp ≫ Freerdp Version 2.0.0 Update rc2
Freerdp ≫ Freerdp Version 2.0.0 Update rc3
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Debian ≫ Debian Linux Version 8.0
Fedoraproject ≫ Fedora Version 28
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 8.16% 0.941
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-680 Integer Overflow to Buffer Overflow

The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.

CWE-681 Incorrect Conversion between Numeric Types

When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.

CWE-787 Out-of-bounds Write

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

http://www.securityfocus.com/bid/106938
Third Party Advisory
VDB Entry
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
Third Party Advisory
Exploit
https://usn.ubuntu.com/3845-1/
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0697
Third Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3
Patch
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/
https://usn.ubuntu.com/3845-2/
Third Party Advisory