CVE-2018-20177
published 2019-03-15CVE-2018-20177: rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results…
PriorityP355critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
7.93%
94.1th percentile
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | rdesktop | < rdesktop 1.8.4-1 (bookworm) | rdesktop 1.8.4-1 (bookworm) |
| opensuse | backports | — | — |
| opensuse | leap | — | — |
| rdesktop | rdesktop | <= 1.8.3 | — |
| rdesktop | rdesktop | >= 0 < 1.8.4-1 | 1.8.4-1 |
| rdesktop | rdesktop | >= 0 < 1.8.4-1 | 1.8.4-1 |
| rdesktop | rdesktop | >= 0 < 1.8.4-1 | 1.8.4-1 |
| rdesktop | rdesktop | >= 0 < 1.8.4-1 | 1.8.4-1 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
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Red Hat
rdesktop: Memory corruption in rdp_in_unistr
vendor_redhat·2019-01-04·CVSS 9.8
CVE-2018-20177 [CRITICAL] CWE-119 rdesktop: Memory corruption in rdp_in_unistr
rdesktop: Memory corruption in rdp_in_unistr
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Package: rdesktop (Red Hat Enterprise Linux 5) - Will not fix
Package: rdesktop (Red Hat Enterprise Linux 6) - Will not fix
Debian
CVE-2018-20177: rdesktop - rdesktop versions up to and including v1.8.3 contain an Integer Overflow that le...
vendor_debian·2018·CVSS 9.8
CVE-2018-20177 [CRITICAL] CVE-2018-20177: rdesktop - rdesktop versions up to and including v1.8.3 contain an Integer Overflow that le...
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Scope: local
bookworm: resolved (fixed in 1.8.4-1)
bullseye: resolved (fixed in 1.8.4-1)
forky: resolved (fixed in 1.8.4-1)
sid: resolved (fixed in 1.8.4-1)
trixie: resolved (fixed in 1.8.4-1)
GHSA
GHSA-5cx7-5prr-62vr: rdesktop versions up to and including v1
ghsa_unreviewed·2022-05-13
CVE-2018-20177 [CRITICAL] CWE-787 GHSA-5cx7-5prr-62vr: rdesktop versions up to and including v1
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
OSV
CVE-2018-20177: rdesktop versions up to and including v1
osv·2019-03-15·CVSS 9.8
CVE-2018-20177 [CRITICAL] CVE-2018-20177: rdesktop versions up to and including v1
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-20177 rdesktop: Memory corruption in rdp_in_unistr
bugzilla·2019-01-29·CVSS 9.8
CVE-2018-20177 [CRITICAL] CVE-2018-20177 rdesktop: Memory corruption in rdp_in_unistr
CVE-2018-20177 rdesktop: Memory corruption in rdp_in_unistr
A flaw was found in rdesktop before 1.8.4. A memory corruption issue in rdp_in_unistr function may lead to denial of service.
Upstream patch:
https://github.com/rdesktop/rdesktop/commit/766ebcf6f23ccfe8323ac10242ae6e127d4505d2
https://github.com/rdesktop/rdesktop/releases/tag/v1.8.4
Discussion:
Created rdesktop tracking bugs for this issue:
Affects: fedora-all [bug 1670427]
---
Note:
You need to connect to a malicious or a MITM RDP server in order to trigger this flaw.
Bugzilla
CVE-2018-20174 CVE-2018-20175 CVE-2018-20176 CVE-2018-20177 CVE-2018-20178 CVE-2018-20179 CVE-2018-20180 CVE-2018-20181 CVE-2018-20182 CVE-2018-8791 CVE-2018-8792 CVE-2018-8793 CVE-2018-8794 CVE-2018-
bugzilla·2019-01-29·CVSS 7.5
CVE-2018-20174 [HIGH] CVE-2018-20174 CVE-2018-20175 CVE-2018-20176 CVE-2018-20177 CVE-2018-20178 CVE-2018-20179 CVE-2018-20180 CVE-2018-20181 CVE-2018-20182 CVE-2018-8791 CVE-2018-8792 CVE-2018-8793 CVE-2018-8794 CVE-2018-
CVE-2018-20174 CVE-2018-20175 CVE-2018-20176 CVE-2018-20177 CVE-2018-20178 CVE-2018-20179 CVE-2018-20180 CVE-2018-20181 CVE-2018-20182 CVE-2018-8791 CVE-2018-8792 CVE-2018-8793 CVE-2018-8794 CVE-2018-8795 ... rdesktop: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant to
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.htmlhttp://www.securityfocus.com/bid/106938https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1https://lists.debian.org/debian-lts-announce/2019/02/msg00030.htmlhttps://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/https://security.gentoo.org/glsa/201903-06https://www.debian.org/security/2019/dsa-4394http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.htmlhttp://www.securityfocus.com/bid/106938https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1https://lists.debian.org/debian-lts-announce/2019/02/msg00030.htmlhttps://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/https://security.gentoo.org/glsa/201903-06https://www.debian.org/security/2019/dsa-4394
2019-03-15
Published