PT-2019-1462 · Rdesktop+2 · Rdesktop+2

Eyal Itkin · Published 2019-01-18 · Updated 2024-06-15 · CVE-2018-8795

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions rdesktop versions up to and including v1.8.3

Description The issue is related to an Integer Overflow in the process bitmap updates() function, leading to a Heap-Based Buffer Overflow, which results in memory corruption and potentially allows for remote code execution. The vulnerability can be exploited by a remote attacker to execute arbitrary code.

Recommendations For versions up to and including v1.8.3, update to a version later than v1.8.3 to resolve the issue. As a temporary workaround, consider disabling the process bitmap updates() function until a patch is available.

Fix

RCE

Integer Overflow

Memory Corruption

Weakness Enumeration

CWE-190

CWE-680

CWE-787

Related Identifiers

ALT-PU-2019-2898

ALT-PU-2020-1636

BDU:2019-00852

CVE-2018-8795

DLA-1683-1

DSA-4394-1

MGASA-2019-0041

OPENSUSE-SU-2019:2135-1

OPENSUSE-SU-2019_2135-1

OPENSUSE-SU-2024:11298-1

Affected Products

Alt Linux

Suse

Rdesktop

References · 51

• https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1 · Patch
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2135-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0041.html · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2018-8795 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0041 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-8795 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-8795 · Security Note
• https://debian.org/security/2019/dsa-4394 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-8795 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-8795 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-8795 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1683-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-8795 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-00852 · Security Note