PT-2020-12651 · Sophos · Sophos Firewall

Arseniy Sharoglazov · Published 2020-06-18 · Updated 2020-06-23 · CVE-2020-11503

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Sophos XG Firewall versions prior to v17.5 MR11

Description A heap-based buffer overflow in the awarrensmtp component potentially allows an attacker to run arbitrary code remotely.

Recommendations For Sophos XG Firewall versions prior to v17.5 MR11, update to a version newer than v17.5 MR11 to resolve the issue. As a temporary workaround, consider restricting access to the awarrensmtp component until a patch is available.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-11503

Affected Products

Sophos Firewall

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2020-11503 · Security Note
• https://community.sophos.com/b/security-blog/posts/advisory-potential-rce-through-heap-overflow-in-awarrensmtp-cve-2020-11503 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-11503 · Vendor Advisory
• https://t.me/cvenotify/4464 · Telegram Post