VDB-91908 · CVE-2016-6306 · BID 93153

OpenSSL 1.0.1/1.0.2 Certificate Message memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in OpenSSL 1.0.1/1.0.2. This vulnerability affects unknown code of the component Certificate Message Handler. The manipulation results in memory corruption. This vulnerability was named CVE-2016-6306. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in OpenSSL 1.0.1/1.0.2 (Network Encryption Software). Affected is an unknown code block of the component Certificate Message Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was presented 09/22/2016 by Shi Lei with Qihoo 360 as 20160922.txt as confirmed advisory (Website). The advisory is shared for download at openssl.org. This vulnerability is traded as CVE-2016-6306 since 07/26/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit 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 or 1.0.2i 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 93153†). See VDB-87879, VDB-88080, VDB-90937 and VDB-90940 for similar entries. Once again VulDB remains the best source for 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: 5.6
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.9
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 corruption
CWE: CWE-119
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 1.0.1u/1.0.2i
Patch: 52e623c4cb06fffa9d5e75c60b34b4bc130b12e9

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-2016-6306 (🔍)
GCVE (CVE): GCVE-0-2016-6306
GCVE (VulDB): GCVE-100-91908
SecurityFocus: 93153 - OpenSSL CVE-2016-6306 Local Denial of Service Vulnerability
SecurityTracker: 1036885

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 08/29/2024 06:29
Changes: 09/23/2016 18:11 (48), 07/07/2019 16:50 (7), 09/20/2022 10:44 (5), 09/20/2022 10:49 (18), 08/29/2024 06:29 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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