CVE-2020-9490
7.5
HIGH
CVSS 3.1
EPSS 76.3%
Description
Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.
How to fix CVE-2020-9490
To remediate CVE-2020-9490, upgrade the affected package to a fixed version below.
- Alpine/apache2—upgrade to 2.4.46-r0 or later
- —upgrade to 2.4.46 or later
- —upgrade to 2.4.46-1 or later
Is CVE-2020-9490 being exploited?
Likely — EPSS is 76.3%, placing CVE-2020-9490 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 2.4.46-r0
- >= 2.4.20, < 2.4.46
- from 0, < 2.4.46-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |