PT-2025-28029 · Alinto+1 · Sogo+1

Stefan Bühler · Published 2025-07-05 · Updated 2025-10-31 · CVE-2025-53603

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Alinto SOPE SOGo versions 2.0.2 through 5.12.2

Description This issue involves a NULL pointer dereference in sope-core/NGExtensions/NGHashMap.m that can lead to a crash of the SOGo application. The vulnerability occurs when a request contains a parameter in the query string that duplicates a parameter in the POST body. Approximately 30,000 installations of SOGo are tracked in the Russian internet space, with an estimated 98% being vulnerable. While mass exploitation has not been observed, the vulnerability allows for remote, unauthenticated denial-of-service attacks.

Recommendations Update SOGo to version 5.12.3 or later to resolve this issue. Restart the service to reset active sessions.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-53603

DLA-4260-1

DSA-5970-1

MGASA-2025-0255

Affected Products

Debian

Sogo

References · 26

• 🔥 https://openwall.com/lists/oss-security/2025/07/02/3 · Exploit
• https://osv.dev/vulnerability/MGASA-2025-0255 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53603 · Security Note
• https://osv.dev/vulnerability/DLA-4260-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-53603 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-53603 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2025-0255.html · Security Note
• https://cve.org/CVERecord?id=CVE-2025-53603 · Security Note
• https://osv.dev/vulnerability/DSA-5970-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-53603 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-53603 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-53603 · Vendor Advisory
• https://github.com/Alinto/sope/blob/3146fbdb6ff3314e37e5c3682deeeef7d0f32064/sope-core/NGExtensions/NGHashMap.m#L790 · Note
• https://github.com/Alinto/sope/pull/69 · Note
• https://github.com/Alinto/sope/compare/SOGo-2.0.1...SOGo-2.0.2 · Note