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openSUSE Security Update : libmspack (openSUSE-2018-1329)

medium Nessus Plugin ID 118561

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Synopsis

The remote openSUSE host is missing a security update.

Description

This update for libmspack fixes the following issues :

Security issues fixed :

 - CVE-2018-18584: The CAB block input buffer was one byte too small for the maximal Quantum block, leading to an out-of-bounds write. (bsc#1113038)

 - CVE-2018-18585: chmd_read_headers accepted a filename that has '\0' as its first or second character (such as the '/\0' name). (bsc#1113039)

 - CVE-2018-18586: chmextract.c in the chmextract sample program did not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal.
 NOTE: the vendor disputes that this is a libmspack vulnerability, because chmextract.c was only intended as a source-code example, not a supported application.
 (boo#1113040)

 - Fix off-by-one bounds check on CHM PMGI/PMGL chunk numbers and reject empty filenames.

Solution

Update the affected libmspack packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1113038

https://bugzilla.opensuse.org/show_bug.cgi?id=1113039

https://bugzilla.opensuse.org/show_bug.cgi?id=1113040

Plugin Details

Severity: Medium

ID: 118561

File Name: openSUSE-2018-1329.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/31/2018

Updated: 7/26/2024

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-18586

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:libmspack0, p-cpe:/a:novell:opensuse:libmspack0-debuginfo-32bit, p-cpe:/a:novell:opensuse:libmspack0-debuginfo, p-cpe:/a:novell:opensuse:libmspack-devel, p-cpe:/a:novell:opensuse:libmspack0-32bit, cpe:/o:novell:opensuse:42.3, p-cpe:/a:novell:opensuse:libmspack-debugsource

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/30/2018

Vulnerability Publication Date: 10/23/2018

Reference Information

CVE: CVE-2018-18584, CVE-2018-18585, CVE-2018-18586