OpenConnect up to 8.04 process_http_response buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in OpenConnect up to 8.04. This vulnerability affects the function process_http_response. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2019-16239. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in OpenConnect up to 8.04. This affects the function process_http_response. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes.

The weakness was presented 09/17/2019 (Website). It is possible to read the advisory at lists.fedoraproject.org. This vulnerability is uniquely identified as CVE-2019-16239 since 09/11/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 8.05 eliminates this vulnerability.

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenConnect 8.05

Timelineinfo

09/11/2019 🔍
09/17/2019 +6 days 🔍
09/17/2019 +0 days 🔍
12/26/2023 +1561 days 🔍

Sourcesinfo

Advisory: USN-4565-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-16239 (🔍)
GCVE (CVE): GCVE-0-2019-16239
GCVE (VulDB): GCVE-100-141903

Entryinfo

Created: 09/17/2019 20:56
Updated: 12/26/2023 07:53
Changes: 09/17/2019 20:56 (39), 08/28/2020 11:25 (17), 12/26/2023 07:53 (4)
Complete: 🔍
Cache ID: 216::103

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