Heap-based buffer overflow in the parse_unicode_node function in bplist.c in libimobiledevice libplist 1.12 allows local users to cause a denial of service (out-of-bounds write) and possibly code execution via a crafted plist file.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Heap-based buffer overflow in the parse_unicode_node function in bplist.c in libimobiledevice libplist     1.12 allows local users to cause a denial of service (out-of-bounds write) and possibly code execution via     a crafted plist file. (CVE-2017-6438)

Note that Nessus relies on the presence of the package as reported by the vendor.

New libplist packages are available for Slackware 14.2 and -current to fix security issues.

This update for libplist fixes the following issues: Security issues fixed :

  - CVE-2017-6439: Heap-based buffer overflow in the     parse_string_node function. (bsc#1029638)

  - CVE-2017-6438: Heap-based buffer overflow in the     parse_unicode_node function. (bsc#1029706)

  - CVE-2017-6437: The base64encode function in base64.c     allows local users to cause denial of service     (out-of-bounds read) via a crafted plist file.
    (bsc#1029707)

  - CVE-2017-6436: Integer overflow in parse_string_node.
    (bsc#1029751)

  - CVE-2017-6435: Crafted plist file could lead to     Heap-buffer overflow. (bsc#1029639)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libplist fixes the following issues :

Security issues fixed :

  - CVE-2017-6439: Heap-based buffer overflow in the     parse_string_node function. (bsc#1029638)

  - CVE-2017-6438: Heap-based buffer overflow in the     parse_unicode_node function. (bsc#1029706)

  - CVE-2017-6437: The base64encode function in base64.c     allows local users to cause denial of service     (out-of-bounds read) via a crafted plist file.
    (bsc#1029707)

  - CVE-2017-6436: Integer overflow in parse_string_node.
    (bsc#1029751)

  - CVE-2017-6435: Crafted plist file could lead to     Heap-buffer overflow. (bsc#1029639)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

- Update to upstream 2.0.0

  - Fixes the following CVEs plus others

  - CVE-2017-6440 CVE-2017-6439 CVE-2017-6438 CVE-2017-6437     CVE-2017-6436 CVE-2017-6435 CVE-2017-5836 CVE-2017-5835     CVE-2017-5834 CVE-2017-5545 CVE-2017-5209

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Version 2.0.0

Changes :

  - New light-weight custom XML parser

  - Remove libxml2 dependency

  - Refactor binary plist parsing

  - Improved malformed XML and binary plist detection and     error handling

  - Add parser debug/error output (when compiled with
    --enable-debug), controlled via environment variables

  - Fix unicode character handling

  - Add PLIST_IS_* helper macros for the different node     types

  - Extend date/time range and date conversion issues

  - Add plist_is_binary() and plist_from_memory() functions     to the interface

  - Plug several memory leaks

  - Speed improvements for handling large plist files

Includes security fixes for :

  - CVE-2017-6440

  - CVE-2017-6439

  - CVE-2017-6438

  - CVE-2017-6437

  - CVE-2017-6436

  - CVE-2017-6435

  - CVE-2017-5836

  - CVE-2017-5835

  - CVE-2017-5834

  - CVE-2017-5545

  - CVE-2017-5209

... and several others that didn't receive any CVE (yet).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Type	Severity
221412	Linux Distros Unpatched Vulnerability : CVE-2017-6438	Nessus	Misc.	Local	high
104641	Slackware 14.2 / current : libplist (SSA:2017-320-01)	Nessus	Slackware Local Security Checks	Local	critical
102578	SUSE SLED12 / SLES12 Security Update : libplist (SUSE-SU-2017:2201-1)	Nessus	SuSE Local Security Checks	Local	high
102568	openSUSE Security Update : libplist (openSUSE-2017-953)	Nessus	SuSE Local Security Checks	Local	high
101732	Fedora 26 : libplist (2017-d8173aacff)	Nessus	Fedora Local Security Checks	Local	critical
100188	Fedora 25 : libplist (2017-4047180cd3)	Nessus	Fedora Local Security Checks	Local	critical
100187	Fedora 24 : libplist (2017-3849af4477)	Nessus	Fedora Local Security Checks	Local	critical

Detections

Analytics

CVE-2017-6438

high

Tenable Plugins

high

critical

high

high

critical

critical

critical