CVE-2021-27577
trafficserver - security update
7.5
HIGH
CVSS 3.1
EPSS 1.2%
Description
Incorrect handling of url fragment vulnerability of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.
How to fix CVE-2021-27577
To remediate CVE-2021-27577, upgrade the affected package to a fixed version below.
- Debian/trafficserver—upgrade to 8.1.1+ds-1.1 or later
- —upgrade to 8.0.2+ds-1+deb10u5 or later
Is CVE-2021-27577 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 8.1.1+ds-1.1
- from 0, < 8.0.2+ds-1+deb10u5
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:H/A:N |