Detections
Analytics
SUSE SLES11 Security Update : LibVNCServer (SUSE-SU-2020:14424-1)
medium Nessus Plugin ID 150525
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Synopsis
The remote SUSE host is missing one or more security updates.Description
The remote SUSE Linux SLES11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14424-1 advisory.- An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference. (CVE-2020-14397)
- An issue was discovered in LibVNCServer before 0.9.13. An improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c. (CVE-2020-14398)
- ** DISPUTED ** An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly no trust boundary crossed. (CVE-2020-14399)
- ** DISPUTED ** An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint16_t pointers in libvncserver/translate.c. NOTE: Third parties do not consider this to be a vulnerability as there is no known path of exploitation or cross of a trust boundary. (CVE-2020-14400)
- An issue was discovered in LibVNCServer before 0.9.13. libvncserver/scale.c has a pixel_value integer overflow. (CVE-2020-14401)
- An issue was discovered in LibVNCServer before 0.9.13. libvncserver/corre.c allows out-of-bounds access via encodings. (CVE-2020-14402)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected LibVNCServer package.See Also
https://bugzilla.suse.com/1173691
https://bugzilla.suse.com/1173694
https://bugzilla.suse.com/1173700
https://bugzilla.suse.com/1173701
https://bugzilla.suse.com/1173743
https://bugzilla.suse.com/1173880
http://www.nessus.org/u?92d0484e
https://www.suse.com/security/cve/CVE-2020-14397
https://www.suse.com/security/cve/CVE-2020-14398
https://www.suse.com/security/cve/CVE-2020-14399
https://www.suse.com/security/cve/CVE-2020-14400
Plugin Details
Severity: Medium
ID: 150525
File Name: suse_SU-2020-14424-1.nasl
Version: 1.2
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 6/10/2021
Updated: 6/10/2021
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2020-14401
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:libvncserver
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 7/17/2020
Vulnerability Publication Date: 6/17/2020
Reference Information
CVE: CVE-2020-14397, CVE-2020-14398, CVE-2020-14399, CVE-2020-14400, CVE-2020-14401, CVE-2020-14402
SuSE: SUSE-SU-2020:14424-1