CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.6 | $0-$5k | 0.00 |
A vulnerability classified as very critical was found in Apple Mac OS X up to 10.11.5 (Operating System). Affected by this vulnerability is some unknown functionality of the component libexpat. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow.
The weakness was shared 07/18/2016 by Gustavo Grieco as HT206903 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2016-0718 since 12/16/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/06/2022). The advisory points out:
Multiple memory corruption issues were addressed through improved memory handling.
The vulnerability scanner Nessus provides a plugin with the ID 109594 (FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168881 (OpenSuSE Security Update for expat (openSUSE-SU-2016:1441-1)).
Upgrading to version 10.11.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (109594). The entries 87628, 89726, 89727 and 89728 are related to this item.
Product
Type
Vendor
Name
Version
License
Support
- end of life
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 109594
Nessus Name: FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 800495
OpenVAS Name: Apple iTunes Multiple Vulnerabilities-HT207599 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
Exposure Time: 🔍
Upgrade: Mac OS X 10.11.6
Timeline
12/16/2015 🔍05/18/2016 🔍
05/26/2016 🔍
07/18/2016 🔍
07/18/2016 🔍
07/19/2016 🔍
05/07/2018 🔍
09/06/2022 🔍
Sources
Vendor: apple.comAdvisory: HT206903
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-0718 (🔍)
OVAL: 🔍
SecurityTracker: 1036348
SecurityFocus: 90729 - Expat CVE-2016-0718 Buffer Overflow Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍
Entry
Created: 07/19/2016 19:24Updated: 09/06/2022 08:52
Changes: 07/19/2016 19:24 (59), 03/03/2019 12:58 (25), 09/06/2022 08:52 (3)
Complete: 🔍
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