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

Medium Nessus Plugin ID 118561

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: 1.3

Type: local

Agent: unix

Published: 2018/10/31

Updated: 2019/01/28

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 6.5

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

Vulnerability Information

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

Patch Publication Date: 2018/10/30

Vulnerability Publication Date: 2018/10/23

Reference Information

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