Vulnerability Name:

CVE-2020-29260 (CCN-235272)

Assigned:2020-11-21
Published:2020-11-21
Updated:2022-10-05
Summary:libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-29260

Source: XF
Type: UNKNOWN
libvncclient-cve202029260-dos(235272)

Source: CCN
Type: libvncserver GIT Repository
libvncclient: free vncRec memory in rfbClientCleanup()

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20220929 [SECURITY] [DLA 3125-1] libvncserver security update

Source: CCN
Type: Mend Vulnerability Database
CVE-2020-29260

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libvncserver_project:libvncserver:0.9.13:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:806
    P
    		Security update for LibVNCServer (Moderate)
    2022-10-06
    BACK
    libvncserver_project libvncserver 0.9.13
    debian debian linux 10.0