Debian DLA-2705-1 : scilab - LTS security update

high Nessus Plugin ID 151480

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2705 advisory.

- An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd(), while parsing a crafted XML file, performs incorrect memory handling, leading to a NULL pointer dereference while running strcmp() on a NULL pointer. (CVE-2021-30485)

- An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant. (CVE-2021-31229)

- An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_parse_str() performs incorrect memory handling while parsing crafted XML files (writing outside a memory region created by mmap).
(CVE-2021-31347)

- An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_parse_str() performs incorrect memory handling while parsing crafted XML files (out-of-bounds read after a certain strcspn failure).
(CVE-2021-31348)

- An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_decode() performs incorrect memory handling while parsing crafted XML files, leading to a heap-based buffer overflow. (CVE-2021-31598)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the scilab packages.

For Debian 9 stretch, these problems have been fixed in version 5.5.2-4+deb9u1.

Plugin Details

Severity: High

ID: 151480

File Name: debian_DLA-2705.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/8/2021

Updated: 12/8/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-31598

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:scilab-doc, p-cpe:/a:debian:debian_linux:scilab-doc-ja, p-cpe:/a:debian:debian_linux:scilab, p-cpe:/a:debian:debian_linux:scilab-full-bin-dbg, p-cpe:/a:debian:debian_linux:scilab-doc-fr, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:scilab-minimal-bin, p-cpe:/a:debian:debian_linux:scilab-cli, p-cpe:/a:debian:debian_linux:scilab-data, p-cpe:/a:debian:debian_linux:scilab-doc-pt-br, p-cpe:/a:debian:debian_linux:scilab-test, p-cpe:/a:debian:debian_linux:scilab-minimal-bin-dbg, p-cpe:/a:debian:debian_linux:scilab-include, p-cpe:/a:debian:debian_linux:scilab-full-bin

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/8/2021

Vulnerability Publication Date: 4/11/2021

Reference Information

CVE: CVE-2021-30485, CVE-2021-31229, CVE-2021-31347, CVE-2021-31348, CVE-2021-31598

Detections

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