PT-2022-2310 · Snort+1 · Snort+1

Uri Katz · Published 2022-01-19 · Updated 2025-06-24 · CVE-2022-20685

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Snort (affected versions not specified)

Description The issue is caused by an integer overflow while processing Modbus traffic, allowing a remote attacker to cause a denial of service (DoS) condition on an affected device. An attacker could exploit this by sending crafted Modbus traffic through an affected device, potentially causing the Snort process to hang and stopping traffic inspection.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2022-02496

CVE-2022-20685

Affected Products

Cisco Ios Xe

Snort

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2022-20685 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/675628 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-20685 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02496 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-xss-NXOxDhRQ · Vendor Advisory
• https://t.me/cvenotify/126501 · Telegram Post
• https://t.me/true_secator/2544 · Telegram Post
• https://twitter.com/CVEnew/status/1857458733749612711 · Twitter Post
• https://t.me/my_cyde/264 · Telegram Post
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj?vsfCisco20Security20AdvisoryvscatSecurity20IntelligencevstypeRSSvspMultiple20Cisco20Products20Snort20Modbus20Denial20of20Service20Vulnerabilityvsk1 · Note