Python 2.7.5/2.7.6/3.3.5 JSON _json.c index memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Python 2.7.5/2.7.6/3.3.5. It has been classified as problematic. This issue affects some unknown processing of the file _json.c of the component JSON Module. This manipulation of the argument index with the input -1 causes memory corruption. This vulnerability appears as CVE-2014-4616. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Python 2.7.5/2.7.6/3.3.5 (Programming Language Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the file _json.c of the component JSON Module. The manipulation of the argument index with the input value -1 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.

The weakness was presented 06/23/2014 by Guido Vranken as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2014-4616 since 06/24/2014. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 78323 (Amazon Linux AMI : python27 (ALAS-2014-380)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350355 (Amazon Linux Security Advisory for python-simplejson: ALAS-2014-374).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (93933), Tenable (78323), SecurityFocus (BID 68119†), OSVDB (108354†) and Vulnerability Center (SBV-45531†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78323
Nessus Name: Amazon Linux AMI : python27 (ALAS-2014-380)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2014-380
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/20/2014 🔍
06/20/2014 +0 days 🔍
06/23/2014 +3 days 🔍
06/24/2014 +1 days 🔍
07/20/2014 +26 days 🔍
10/12/2014 +84 days 🔍
03/17/2015 +156 days 🔍
08/24/2017 +891 days 🔍
08/04/2021 +1441 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Guido Vranken
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4616 (🔍)
GCVE (CVE): GCVE-0-2014-4616
GCVE (VulDB): GCVE-100-46303
X-Force: 93933 - Python JSON module negative index values information disclosure, Low Risk
SecurityFocus: 68119 - Python JSON Module '_json.c' Local Information Disclosure Vulnerability
OSVDB: 108354
Vulnerability Center: 45531 - Python JSON Module Local Information Disclosure due to Use of Negative Index Values in an Array, Low

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/04/2021 11:22
Changes: 03/17/2015 16:11 (72), 06/02/2017 08:03 (6), 08/04/2021 11:06 (4), 08/04/2021 11:14 (11), 08/04/2021 11:22 (1)
Complete: 🔍
Cache ID: 216:3DB:103

Be aware that VulDB is the high quality source for vulnerability data.

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