CVE-2019-20637 Information disclosure in n/a

What is CVE-2019-20637?

CVE-2019-20637 is a high-severity vulnerability in Opensuse Backports Sle, published on 8 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-212

Which versions are affected by CVE-2019-20637?

It affects 4 products.

Products include Opensuse Backports Sle, Opensuse Leap, Varnish-Cache Varnish Cache, Varnish-Software Varnish Cache.

How do I fix CVE-2019-20637?

Upgrade to a fixed version.

Is CVE-2019-20637 being exploited?

There is no known exploitation of CVE-2019-20637 in the wild and no public exploit code.

Other vulnerabilities in Opensuse Backports Sle

• CVE-2020-12641 Roundcube Webmail Remote Code Execution Exploited Critical 9.8
• CVE-2020-12640 Path traversal in n/a Critical 9.8
• CVE-2020-8233 Command injection in EdgeSwitch firmware v1.9.0 and prior High 8.8
• CVE-2020-8026 inn: non-root owned files High 8.4
• CVE-2020-15229 Path traversal and files overwrite with unsquashfs High 8.2

All Opensuse Backports Sle vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-20637, GHSA-h2vv-cmjp-m2w5, UBUNTU-CVE-2019-20637.