strongSwan up to 5.7.0 gmp Plugin Crafted Certificate memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in strongSwan up to 5.7.0 and classified as critical. The affected element is an unknown function of the component gmp Plugin. The manipulation as part of Crafted Certificate leads to memory corruption. This vulnerability is uniquely identified as CVE-2018-17540. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in strongSwan up to 5.7.0 (Network Encryption Software). It has been rated as critical. This issue affects an unknown part of the component gmp Plugin. The manipulation as part of a Crafted Certificate 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. The summary by CVE is:

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.

The bug was discovered 10/01/2018. The weakness was disclosed 10/03/2018 (Website). The advisory is shared at lists.debian.org. The identification of this vulnerability is CVE-2018-17540 since 09/26/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 117868 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerability (USN-3774-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176497 (Debian Security Update for strongswan (DSA 4309-1)).

Upgrading to version 5.7.1 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 (117868). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: 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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Nessus ID: 117868
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerability (USN-3774-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: strongSwan 5.7.1

Timelineinfo

09/26/2018 🔍
10/01/2018 +5 days 🔍
10/01/2018 +0 days 🔍
10/02/2018 +1 days 🔍
10/03/2018 +0 days 🔍
10/03/2018 +0 days 🔍
10/04/2018 +1 days 🔍
05/22/2023 +1691 days 🔍

Sourcesinfo

Advisory: USN-3774-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-17540 (🔍)
GCVE (CVE): GCVE-0-2018-17540
GCVE (VulDB): GCVE-100-124757

OVAL: 🔍

Entryinfo

Created: 10/04/2018 07:56
Updated: 05/22/2023 08:06
Changes: 10/04/2018 07:56 (72), 03/29/2020 14:42 (2), 05/22/2023 08:06 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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