SonicWall SonicOS

CVE-2021-20048
HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 2.00 % · percentile 81 ()
State
PUBLISHED
Published
Updated
Assigner
sonicwall
NVD status
Modified

Description

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

Weaknesses (CWE)

  • CWE-121 — Stack-based Buffer Overflow
  • CWE-787 — Out-of-bounds Write

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 6.5AV:N/AC:L/Au:S/C:P/I:P/A:PNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
SonicWall · SonicOSaffected 7.0.1-R146 and earlier ; affected 7.0.1-5023-1349 and earlier ; affected 7.0.1-5018-R1715 and earlier ; affected 6.5.4.8-89n and earlier ; affected 6.5.1.13-1n and earlier ; affected 6.0.5.3-94o and earlier

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD