libimobiledevice libplist 1.12 PLIST File bplist.c parse_string_node out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in libimobiledevice libplist 1.12. This issue affects the function parse_string_node of the file bplist.c of the component PLIST File Handler. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2017-6439. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in libimobiledevice libplist 1.12 and classified as problematic. Affected by this issue is the function parse_string_node of the file bplist.c of the component PLIST File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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

The bug was discovered 03/02/2017. The weakness was presented 03/15/2017 by zhunki (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2017-6439 since 03/02/2017. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97965 (Debian DLA-870-1 : libplist security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276634 (Fedora Security Update for libplist (FEDORA-2017-4047180cd3)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97965) and SecurityFocus (BID 97278†). See VDB-95188, VDB-98164, VDB-98165 and VDB-98166 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.0
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97965
Nessus Name: Debian DLA-870-1 : libplist security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for libplist FEDORA-2017-4047180cd3
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/02/2017 🔍
03/02/2017 +0 days 🔍
03/15/2017 +13 days 🔍
03/15/2017 +0 days 🔍
03/15/2017 +0 days 🔍
03/16/2017 +1 days 🔍
03/24/2017 +8 days 🔍
03/27/2017 +3 days 🔍
09/09/2020 +1262 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: zhunki
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6439 (🔍)
GCVE (CVE): GCVE-0-2017-6439
GCVE (VulDB): GCVE-100-98168
SecurityFocus: 97278 - libplist 'parse_string_node()' Function Local Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2017-6439 - libplist - Out-of-Bounds Write Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 11:15
Updated: 09/09/2020 09:56
Changes: 03/16/2017 11:15 (76), 09/09/2020 09:56 (8)
Complete: 🔍
Cache ID: 216:C6E:103

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