PT-2019-1916 · Rdesktop+2 · Rdesktop+2

Eyal Itkin · Published 2019-01-16 · Updated 2024-06-15 · CVE-2018-20179

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 Underflow in the lspci process() function, leading to a Heap-Based Buffer Overflow, which results in memory corruption and potentially allows for remote code execution. This could enable a remote attacker to execute arbitrary code.

Recommendations For rdesktop versions up to and including v1.8.3, consider disabling the lspci process() function as a temporary workaround until a patch is available. Restrict access to the lspci process() function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

ALT-PU-2019-2898

ALT-PU-2020-1636

BDU:2019-01584

CVE-2018-20179

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://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients · Exploit
• 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://nvd.nist.gov/vuln/detail/CVE-2018-20179 · Security Note
• https://advisories.mageia.org/MGASA-2019-0041.html · Security Note
• https://ubuntu.com/security/CVE-2018-20179 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-20179 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-20179 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0041 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-20179 · Vendor Advisory
• https://debian.org/security/2019/dsa-4394 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1683-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-20179 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11298-1 · Vendor Advisory