VDB-91909 · CVE-2016-6307 · BID 93152

OpenSSL 1.1.0 tls_get_message_header memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in OpenSSL 1.1.0. This issue affects the function tls_get_message_header. This manipulation causes memory allocation. The identification of this vulnerability is CVE-2016-6307. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in OpenSSL 1.1.0 (Network Encryption Software). Affected by this vulnerability is the function tls_get_message_header. 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 shared 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-2016-6307 since 07/26/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 38636 (OpenSSL Multiple Vulnerabilities (OpenSSL Security Advisory 20160922)).

Upgrading to version 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 93152†). The entries VDB-87879, VDB-88080, VDB-90937 and VDB-90940 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
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 1.1.0a
Patch: 4b390b6c3f8df925dc92a3dd6b022baa9a2f4650

Timelineinfo

07/26/2016 🔍
09/21/2016 +57 days 🔍
09/22/2016 +1 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
09/25/2024 +2924 days 🔍

Sourcesinfo

Product: openssl.org

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

CVE: CVE-2016-6307 (🔍)
GCVE (CVE): GCVE-0-2016-6307
GCVE (VulDB): GCVE-100-91909
SecurityFocus: 93152 - OpenSSL CVE-2016-6307 Denial of Service Vulnerability
SecurityTracker: 1036885

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 09/25/2024 19:15
Changes: 09/23/2016 18:11 (48), 07/07/2019 16:54 (7), 09/20/2022 10:54 (4), 09/25/2024 19:15 (16)
Complete: 🔍
Cache ID: 216::103

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