CVE-2018-8800: check point software technologies ltd. rdesktop Heap-based Buffer Overflow
CVSS: 9.8v3.1CriticalModified
AliasesALPINE-CVE-2018-8800UBUNTU-CVE-2018-8800DEBIAN-CVE-2018-8800
Published 05-02-2019Last modified 16-09-2024
Vulnerability summary
CVE-2018-8800 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in check point software technologies ltd. rdesktop. EPSS estimates a 7.06% chance of exploitation in the next 30 days, higher than 94.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
7.06%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 2Timeline
- 05-02-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function ui_clip_handle_data() that results in a memory corruption and probably even a remote code execution.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
7.06%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 7.06% on 19-09-2026
19-09-202619-10-2026
EPSS score7.06%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian2 products
- rdesktop< 1.8.4-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- rdesktop< 1.8.6-r0
Check point software technologies ltd.1 product
- rdesktopAll versions up to and including v1.8.3
Opensuse1 product
- leapEOL15.1
Rdesktop1 product
- rdesktop≤ 1.8.3
Ubuntu1 product
- rdesktopAll versions (No fix recorded)
6 vendors · 7 products
References
12 links- github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1X Refsource MISCPatchThird Party Advisory
- research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/X Refsource CONFIRMThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/02/msg00030.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory