CVE-2021-25220

CWE-444 — HTTP Request Smuggling12 documents9 sources
Severity
6.8MEDIUM
EPSS
0.1%
top 71.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
ISC BindJuniper JunosSiemens Sinec INS+1 more
Timeline
PublishedMar 23
Latest updateJul 15

Description

BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:NExploitability: 2.3 | Impact: 4.0

Affected Packages6 packages

▶NVDisc/bind9.11.0 — 9.11.37+4
▶Debianbind9< 1:9.16.27-1~deb11u1+3
▶Ubuntubind9< 1:9.11.3+dfsg-1ubuntu1.17+3
▶CVEListV5isc/bind6 versions+5
▶NVDjuniper/junos< 19.3+11

Also affects: Fedora 34, 35, 36

Patches

Patch: cert-portal.siemens.com ↗Patch: cert-portal.siemens.com ↗

🔴Vulnerability Details

5
GHSA
GHSA-v8rf-mvwx-cx29: BIND 9↗2022-03-24
▶
CVEList
DNS forwarders - cache poisoning vulnerability↗2022-03-23
▶
OSV
CVE-2021-25220: BIND 9↗2022-03-23
▶
OSV
bind9 vulnerabilities↗2022-03-17
▶
OSV
bind9 vulnerability↗2022-03-17
▶

📋Vendor Advisories

6
Oracle
Oracle Oracle Communications Risk Matrix: Virtual Network Function Manager (BIND) — CVE-2021-25220↗2023-07-15
▶
Ubuntu
Bind vulnerabilities↗2022-03-17
▶
Ubuntu
Bind vulnerability↗2022-03-17
▶
Red Hat
bind: DNS forwarders - cache poisoning vulnerability↗2022-03-16
▶
Microsoft
DNS forwarders - cache poisoning vulnerability↗2022-03-08
▶
CVE-2021-25220 (MEDIUM CVSS 6.8) | BIND 9.11.0 -> 9.11.36 9.12.0 -> 9. | cvebase.io