PT-2018-2491 · Freerdp+5 · Freerdp+5

Eyal Itkin · Published 2016-04-08 · Updated 2024-06-15 · CVE-2018-8786

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 2.0.0-rc4

Description The issue is caused by an integer truncation leading to a heap-based buffer overflow in the update read bitmap update() function, resulting in memory corruption and potentially allowing remote code execution. Exploitation of this issue may allow a remote attacker to execute arbitrary code or cause a denial of service.

Recommendations For versions prior to 2.0.0-rc4, update to version 2.0.0-rc4 or later to resolve the issue. As a temporary workaround, consider disabling the update read bitmap update() function until a patch is available.

Exploit

Fix

RCE

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-680

CWE-681

CWE-119

CWE-787

Related Identifiers

ALT-PU-2016-1308

BDU:2019-00779

BDU:2019-03473

CESA-2019_0697

CVE-2018-8786

DLA-1666-1

MGASA-2019-0012

OPENSUSE-SU-2019:0325-1

OPENSUSE-SU-2019_0096-1

OPENSUSE-SU-2019_0325-1

OPENSUSE-SU-2024:10768-1

RHSA-2019:0697

RHSA-2019_0697

SUSE-SU-2019:0134-1

SUSE-SU-2019:0539-1

SUSE-SU-2020:2272-1

USN-3845-1

USN-3845-2

Affected Products

Alt Linux

Centos

Freerdp

Red Hat

Suse

Ubuntu

References · 124

• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2018-0886.md · Exploit
• 🔥 https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients · Exploit
• https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3 · Vendor Advisory
• https://usn.ubuntu.com/3845-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-8786 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2019-0697.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-8786 · Security Note
• https://bdu.fstec.ru/vul/2019-03473 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-8786 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-8785 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-8789 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-8786 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0012 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3845-1 · Vendor Advisory