Varnish Cache 7.0.0/7.0.1/7.0.2/7.1.0 HTTP1 Backend denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Varnish Cache 7.0.0/7.0.1/7.0.2/7.1.0. This impacts an unknown function of the component HTTP1 Backend Handler. This manipulation causes denial of service. The identification of this vulnerability is CVE-2022-38150. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Varnish Cache 7.0.0/7.0.1/7.0.2/7.1.0 and classified as problematic. Affected by this vulnerability is some unknown processing of the component HTTP1 Backend Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

In Varnish Cache 7.0.0, 7.0.1, 7.0.2, and 7.1.0, it is possible to cause the Varnish Server to assert and automatically restart through forged HTTP/1 backend responses. An attack uses a crafted reason phrase of the backend response status line. This is fixed in 7.0.3 and 7.1.1.

The weakness was shared 08/11/2022. The advisory is shared at varnish-cache.org. This vulnerability is known as CVE-2022-38150 since 08/11/2022. Neither technical details nor an exploit are publicly available.

Upgrading to version 7.0.3 or 7.1.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-40747). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: 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: Cache 7.0.3/7.1.1

Timelineinfo

08/11/2022 🔍
08/11/2022 +0 days 🔍
08/11/2022 +0 days 🔍
06/22/2026 +1410 days 🔍

Sourcesinfo

Advisory: FEDORA-2022-1fa6d1ed2f
Status: Confirmed

CVE: CVE-2022-38150 (🔍)
GCVE (CVE): GCVE-0-2022-38150
GCVE (VulDB): GCVE-100-206149
EUVD: 🔍

Entryinfo

Created: 08/11/2022 10:29
Updated: 06/22/2026 01:29
Changes: 08/11/2022 10:29 (40), 09/10/2022 08:16 (1), 09/10/2022 08:18 (11), 10/20/2025 20:58 (15), 06/22/2026 01:29 (1)
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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