Botan up to 0.10.9/1.11.18 BER Decoder input validation

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7.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Botan up to 0.10.9/1.11.18 and classified as problematic. This affects an unknown part of the component BER Decoder. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2015-5726. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Botan up to 0.10.9/1.11.18. This vulnerability affects an unknown code of the component BER Decoder. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The BER decoder in Botan 0.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause a denial of service (application crash) via an empty BIT STRING in ASN.1 data.

The weakness was shared 05/13/2016 (Website). The advisory is shared for download at debian.org. This vulnerability was named CVE-2015-5726 since 08/04/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 90286 (FreeBSD : Botan BER Decoder vulnerabilities (2004616d-f66c-11e5-b94c-001999f8d30b)), 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 169971 (SUSE Enterprise Linux Security Update for Botan (SUSE-SU-2017:1222-1)).

Upgrading to version 0.10.10 or 1.11.19 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (90286). The entries VDB-87359, VDB-87365, VDB-87366 and VDB-87390 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Botan

Version

• 0.10.0
• 0.10.1
• 0.10.2
• 0.10.3
• 0.10.4
• 0.10.5
• 0.10.6
• 0.10.7
• 0.10.8
• 0.10.9
• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7
• 1.11.8
• 1.11.9
• 1.11.10
• 1.11.11
• 1.11.12
• 1.11.13
• 1.11.14
• 1.11.15
• 1.11.16
• 1.11.17
• 1.11.18

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 90286
Nessus Name: FreeBSD : Botan BER Decoder vulnerabilities (2004616d-f66c-11e5-b94c-001999f8d30b)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 65235
OpenVAS Name: Mageia Linux Local Check: mgasa-2016-0102
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Botan 0.10.10/1.11.19

Timelineinfo

08/04/2015 🔍
03/31/2016 +240 days 🔍
04/01/2016 +1 days 🔍
05/13/2016 +42 days 🔍
05/13/2016 +0 days 🔍
05/16/2016 +3 days 🔍
11/26/2018 +924 days 🔍

Sourcesinfo

Advisory: debian.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5726 (🔍)
GCVE (CVE): GCVE-0-2015-5726
GCVE (VulDB): GCVE-100-87364

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 05/16/2016 09:38
Updated: 11/26/2018 10:04
Changes: 05/16/2016 09:38 (62), 11/26/2018 10:04 (11)
Complete: 🔍
Cache ID: 216:9F3:103

Once again VulDB remains the best source for vulnerability data.

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