VDB-91897 · CVE-2016-6304 · BID 93150

OpenSSL 1.0.1/1.0.2/1.1.0 OCSP Status Request Extension memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in OpenSSL 1.0.1/1.0.2/1.1.0. This vulnerability affects unknown code of the component OCSP Status Request Extension. This manipulation causes memory allocation. This vulnerability is tracked as CVE-2016-6304. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSSL 1.0.1/1.0.2/1.1.0 (Network Encryption Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component OCSP Status Request Extension. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability.

The weakness was disclosed 09/22/2016 by Shi Lei with Qihoo 360 as 20160922.txt as confirmed advisory (Website). The advisory is shared at openssl.org. This vulnerability is known as CVE-2016-6304 since 07/26/2016. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 351322 (Amazon Linux Security Advisory for openssl: AL2012-2018-245).

Upgrading to version 1.0.1u, 1.0.2i or 1.1.0a 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 SecurityFocus (BID 93150†). The entries VDB-87879, VDB-88080, VDB-90937 and VDB-90940 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: OpenSSL 1.0.1u/1.0.2i/1.1.0a
Patch: 2c0d295e26306e15a92eb23a84a1802005c1c137

Timelineinfo

07/26/2016 🔍
09/22/2016 +58 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
09/23/2016 +0 days 🔍
08/29/2024 +2897 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: 20160922.txt
Researcher: Shi Lei
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6304 (🔍)
GCVE (CVE): GCVE-0-2016-6304
GCVE (VulDB): GCVE-100-91897
SecurityFocus: 93150 - OpenSSL CVE-2016-6304 Denial of Service Vulnerability
SecurityTracker: 1036878

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 08/29/2024 11:19
Changes: 09/23/2016 18:11 (48), 07/07/2019 16:23 (7), 09/20/2022 09:35 (5), 09/20/2022 09:36 (18), 08/29/2024 11:19 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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