CVE-2021-27790 — Out-of-bounds Write in Fabric Operating System

CWE-787 — Out-of-bounds WriteCWE-20 — Improper Input Validation3 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 84.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Broadcom Fabric Operating SystemBrocade Fabric OS
Timeline
PublishedAug 12
Latest updateMay 24

Description

The command ipfilter in Brocade Fabric OS before Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h uses unsafe string function to process user input. Authenticated attackers can abuse this vulnerability to exploit stack-based buffer overflows, allowing execution of arbitrary code as the root user account.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5brocade/brocade_fabric_osBrocade Fabric OS before Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h
▶NVDbroadcom/fabric_operating_system8.0.0 — 8.2.0_cbn4+3

🔴Vulnerability Details

2
GHSA
GHSA-qp38-g7j8-6pgx: The command “ipfilter” in Brocade Fabric OS before Brocade Fabric OS v↗2022-05-24
▶
CVEList
CVE-2021-27790: The command ipfilter in Brocade Fabric OS before Brocade Fabric OS v↗2021-08-12
▶
CVE-2021-27790 — Out-of-bounds Write | cvebase