CVE-2019-20637
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.
Overview
- CVE ID
- CVE-2019-20637
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-04-08T23:15:12
- Last Modified Date
- 2022-08-02T19:03:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:* | 1 | OR | 6.1.0 | 6.2.2 |
| cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:* | 1 | OR | 6.3.0 | 6.3.1 |
| cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:* | 1 | OR | 6.0.0 | 6.0.5 |
| cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://varnish-cache.org/security/VSV00004.html#vsv00004 | Vendor Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-20637 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20637 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:27:19 | Added to TrackCVE | |||
| 2022-12-04 14:15:19 | 2020-04-08T23:15Z | 2020-04-08T23:15:12 | CVE Published Date | updated |
| 2022-12-04 14:15:19 | 2022-08-02T19:03:41 | CVE Modified Date | updated | |
| 2022-12-04 14:15:19 | Analyzed | Vulnerability Status | updated |