HAProxy up to 2.5 htx_add_header integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in HAProxy up to 2.5. It has been rated as critical. Affected by this vulnerability is the function htx_add_header. Performing a manipulation results in integer overflow. This vulnerability is cataloged as CVE-2021-40346. It is possible to initiate the attack remotely. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in HAProxy up to 2.5 (Firewall Software). This affects the function htx_add_header. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 09/09/2021. It is possible to read the advisory at jfrog.com. This vulnerability is uniquely identified as CVE-2021-40346. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

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

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/31/2021 🔍
09/09/2021 +9 days 🔍
09/09/2021 +0 days 🔍
09/11/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: dsa-4968
Status: Confirmed

CVE: CVE-2021-40346 (🔍)
GCVE (CVE): GCVE-0-2021-40346
GCVE (VulDB): GCVE-100-182259

Entryinfo

Created: 09/09/2021 11:08
Updated: 09/11/2021 09:54
Changes: 09/09/2021 11:08 (57), 09/11/2021 09:49 (3), 09/11/2021 09:54 (1)
Complete: 🔍
Cache ID: 216::103

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