Scientific Linux Security Update : tigervnc on SL7.x x86_64 (20201001)

medium Nessus Plugin ID 141653

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VPR Score: 5.9

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

- tigervnc: Stack use-after-return due to incorrect usage of stack memory in ZRLEDecoder (CVE-2019-15691)

- tigervnc: Heap buffer overflow triggered from CopyRectDecoder due to incorrect value checks (CVE-2019-15692)

- tigervnc: Heap buffer overflow in TightDecoder::FilterGradient (CVE-2019-15693)

- tigervnc: Heap buffer overflow in DecodeManager::decodeRect (CVE-2019-15694)

- tigervnc: Stack buffer overflow in CMsgReader::readSetCursor (CVE-2019-15695)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?6f33ff44

Plugin Details

Severity: Medium

ID: 141653

File Name: sl_20201001_tigervnc_on_SL7_x.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/21/2020

Updated: 10/23/2020

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.5

Temporal Score: 4.8

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:tigervnc, p-cpe:/a:fermilab:scientific_linux:tigervnc-debuginfo, p-cpe:/a:fermilab:scientific_linux:tigervnc-icons, p-cpe:/a:fermilab:scientific_linux:tigervnc-license, p-cpe:/a:fermilab:scientific_linux:tigervnc-server, p-cpe:/a:fermilab:scientific_linux:tigervnc-server-applet, p-cpe:/a:fermilab:scientific_linux:tigervnc-server-minimal, p-cpe:/a:fermilab:scientific_linux:tigervnc-server-module, x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2020

Vulnerability Publication Date: 12/26/2019

Reference Information

CVE: CVE-2019-15691, CVE-2019-15692, CVE-2019-15693, CVE-2019-15694, CVE-2019-15695