VDB-8672 · CVE-2013-2052 · OSVDB 93284

Libreswan Openswan up to 3.1 Encryption atodn memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Libreswan Openswan up to 3.1. It has been declared as critical. This issue affects the function atodn of the component Encryption. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2013-2052. No exploit exists.

Detailsinfo

A vulnerability was found in Libreswan Openswan up to 3.1 and classified as very critical. Affected by this issue is the function atodn of the component Encryption. 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:

Buffer overflow in the atodn function in libreswan 3.0 and 3.1, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records. NOTE: this might be the same vulnerability as CVE-2013-2053 and CVE-2013-2054.

The weakness was disclosed 05/13/2013 by Florian Weimer with Red Hat Product Security Team as not defined advisory (Website). The advisory is shared for download at libreswan.org. This vulnerability is handled as CVE-2013-2052 since 02/19/2013. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/25/2019).

Upgrading to version 3.2 or 3.3 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 OSVDB (93284†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Openswan 3.2/3.3

Timelineinfo

02/19/2013 🔍
05/13/2013 +83 days 🔍
05/13/2013 +0 days 🔍
05/14/2013 +1 days 🔍
07/09/2013 +56 days 🔍
03/25/2019 +2085 days 🔍

Sourcesinfo

Advisory: libreswan.org
Researcher: Florian Weimer
Organization: Red Hat Product Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2052 (🔍)
GCVE (CVE): GCVE-0-2013-2052
GCVE (VulDB): GCVE-100-8672
OSVDB: 93284

Entryinfo

Created: 05/14/2013 16:46
Updated: 03/25/2019 17:08
Changes: 05/14/2013 16:46 (45), 03/25/2019 17:08 (10)
Complete: 🔍
Committer:
Cache ID: 216::103

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

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