Botan up to 1.11.26 P-521 Reduction memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Botan up to 1.11.26 and classified as critical. This affects an unknown function of the component P-521 Reduction. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-2196. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Botan up to 1.11.26. Affected by this issue is an unknown code of the component P-521 Reduction. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.

The weakness was disclosed 05/13/2016 (Website). The advisory is shared for download at marc.info. This vulnerability is handled as CVE-2016-2196 since 01/29/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/19/2022).

The vulnerability scanner Nessus provides a plugin with the ID 89488 (Fedora 22 : botan-1.10.12-1.fc22 / code-editor-2.8.1-13.fc22 / monotone-1.1-13.fc22 / etc (2016-1c08d77b96)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124793 (Fedora Security Update for qt-creator (FEDORA-2016-1c08d77b96)).

Upgrading to version 1.11.27 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 (89488). The entries VDB-87359, VDB-87364, VDB-87365 and VDB-87366 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 89488
Nessus Name: Fedora 22 : botan-1.10.12-1.fc22 / code-editor-2.8.1-13.fc22 / monotone-1.1-13.fc22 / etc (2016-1c08d77b96)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 864006
OpenVAS Name: Fedora Update for botan FEDORA-2016-1
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 1.11.27

Timelineinfo

01/29/2016 🔍
02/29/2016 +31 days 🔍
03/04/2016 +4 days 🔍
05/13/2016 +70 days 🔍
05/13/2016 +0 days 🔍
05/16/2016 +3 days 🔍
08/19/2022 +2286 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-1c08d77b96
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2196 (🔍)
GCVE (CVE): GCVE-0-2016-2196
GCVE (VulDB): GCVE-100-87392
See also: 🔍

Entryinfo

Created: 05/16/2016 09:41
Updated: 08/19/2022 13:13
Changes: 05/16/2016 09:41 (61), 11/26/2018 10:10 (11), 08/19/2022 13:13 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!