Botan up to 1.11.21 Certificate infinite loop

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 (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Botan up to 1.11.21. The impacted element is an unknown function of the component Certificate Handler. This manipulation causes infinite loop. This vulnerability is registered as CVE-2015-7825. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Botan up to 1.11.21 and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Certificate Handler. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. The summary by CVE is:

botan before 1.11.22 improperly validates certificate paths, which allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a certificate with a loop in the certificate chain.

The bug was discovered 04/29/2016. The weakness was published 04/10/2017 (Website). It is possible to read the advisory at botan.randombit.net. This vulnerability is known as CVE-2015-7825 since 10/14/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 346 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.11.22 eliminates this vulnerability.

Similar entries are available at VDB-99534 and VDB-99536. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Infinite loop
CWE: CWE-835 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Botan 1.11.22

Timelineinfo

10/14/2015 🔍
04/29/2016 +198 days 🔍
04/10/2017 +346 days 🔍
04/10/2017 +0 days 🔍
04/11/2017 +1 days 🔍
08/28/2020 +1235 days 🔍

Sourcesinfo

Advisory: botan.randombit.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-7825 (🔍)
GCVE (CVE): GCVE-0-2015-7825
GCVE (VulDB): GCVE-100-99535
OSVDB: - CVE-2015-7825 - botan - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/11/2017 09:37
Updated: 08/28/2020 12:58
Changes: 04/11/2017 09:37 (58), 08/28/2020 12:58 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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