Out-of-bounds write in Synology Unified Controller and Replication Service for DSM

1) Out-of-bounds write

EUVDB-ID: #VU107349

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-10442

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the parsing of command data in the libsynobtrfsreplicacore.so.7 module. A remote attacker on the local network can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Replication Service for DSM: 6.2 - 7.2

Unified Controller (DSMUC): 3.1

CPE2.3

• cpe:2.3:a:synology:replication_service_for_dsm:6.2:*:*:*:*:diskstation_manager_dsm:*:*
• cpe:2.3:a:synology:replication_service_for_dsm:7.1:*:*:*:*:diskstation_manager_dsm:*:*
• cpe:2.3:a:synology:replication_service_for_dsm:7.2:*:*:*:*:diskstation_manager_dsm:*:*
• cpe:2.3:a:synology:unified_controller_dsmuc:3.1:*:*:*:*:*:*:*

External links

https://www.synology.com/en-global/security/advisory/Synology_SA_24_22
https://www.zerodayinitiative.com/advisories/ZDI-25-208/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.