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Fencer Intel
medium 6.5

CVE-2022-38150 json

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 for…

published 4y ago modified 2mo ago also BIT-varnish-2022-38150 , EUVD-2022-40747

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami varnish 7.0.1, 7.0.2, 7.0.3, 7.1.1
  • varnish Debian 13, Debian 12 7.1.1-1

debian advisories DEBIAN-CVE-2022-38150

  • vinyl-cache openSUSE Tumbleweed 9.0.0-1.1
  • varnish openSUSE Tumbleweed 7.1.1-1.1
  • varnish Package Hub 15 SP4, openSUSE Leap 15.4 7.1.1-bp154.2.6.1

opensuse advisories openSUSE-SU-2026:10751-1openSUSE-SU-2024:12255-1openSUSE-SU-2022:10104-1

  • varnish Alpine 3.17 7.1.1-r0
  • varnish Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 7.0.3-r0

alpine advisories ALPINE-CVE-2022-38150

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-38150 updated cvss 7.5

varnish: denial of service via colon-starting reason phrase

  • Red Hat Enterprise Linux 8 varnish, varnish-modules Red Hat Enterprise Linux 9 varnish, varnish-modules Red Hat Software Collections rh-varnish6-varnish, rh-varnish6-jemalloc, rh-varnish6-varnish-libs, rh-varnish6-varnish-modules
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami varnish
>=7.0.0, <7.0.1
>=7.0.1, <7.0.2
>=7.0.2, <7.0.3
>=7.1.0, <7.1.1
7.0.1
7.0.2
7.0.3
7.1.1

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.