ID CVE-2018-8795
Summary rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in function process_bitmap_updates() and results in a memory corruption and probably even a remote code execution.
References
Vulnerable Configurations
  • cpe:2.3:a:rdesktop:rdesktop:1.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.7.1:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.7.1:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.8.1:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.8.1:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.8.2:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.8.2:*:*:*:*:*:*:*
  • cpe:2.3:a:rdesktop:rdesktop:1.8.3:*:*:*:*:*:*:*
    cpe:2.3:a:rdesktop:rdesktop:1.8.3:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVSS
Base: 7.5 (as of 15-09-2019 - 00:15)
Impact:
Exploitability:
CWE CWE-190
CAPEC
  • Forced Integer Overflow
    This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:P/I:P/A:P
refmap via4
bid 106938
confirm https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
debian DSA-4394
gentoo GLSA-201903-06
misc https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
mlist [debian-lts-announce] 20190219 [SECURITY] [DLA 1683-1] rdesktop security update
Last major update 15-09-2019 - 00:15
Published 05-02-2019 - 20:29
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