CVE-2020-5138 — Heap-based Buffer Overflow in Sonicos

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.5%
top 34.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Sonicwall SonicosSonicwall Sonicosv
Timeline
PublishedOct 12
Latest updateMay 24

Description

A Heap Overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to SonicOS crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDsonicwall/sonicosv6.5.4.4
▶NVDsonicwall/sonicos6.0.0.0 — 6.0.5.3+4
▶CVEListV5sonicwall/sonicos7 versions+6

🔴Vulnerability Details

2
GHSA
GHSA-f685-7rhr-28cx: A Heap Overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service↗2022-05-24
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CVEList
CVE-2020-5138: A Heap Overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service↗2020-10-12
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CVE-2020-5138 — Heap-based Buffer Overflow in Sonicos | cvebase