The VobSub subtitle decoder libsub_vob (part of the Amlogic DroidLogic SubTitleService), as shipped on Nexbox A95X (Amlogic S905X) TV boxes, contains an infinite loop vulnerability in get_vob_spu() that allows unauthenticated network attackers or local users loading malicious files to trigger an unreachable loop exit condition via mismatched length fields. Attackers can send crafted AMLU data blocks over the unauthenticated tcp/10100 listener or via a malicious VobSub (.sub) file to cause the subtitle decode thread to spin at 100% CPU indefinitely, resulting in denial of service.
Metrics
Affected Vendors & Products
References
History
Tue, 03 Nov 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Amlogic
Amlogic amlogic Android Sdk Nexbox Nexbox a95x |
|
| Vendors & Products |
Amlogic
Amlogic amlogic Android Sdk Nexbox Nexbox a95x |
Mon, 02 Nov 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The VobSub subtitle decoder libsub_vob (part of the Amlogic DroidLogic SubTitleService), as shipped on Nexbox A95X (Amlogic S905X) TV boxes, contains an infinite loop vulnerability in get_vob_spu() that allows unauthenticated network attackers or local users loading malicious files to trigger an unreachable loop exit condition via mismatched length fields. Attackers can send crafted AMLU data blocks over the unauthenticated tcp/10100 listener or via a malicious VobSub (.sub) file to cause the subtitle decode thread to spin at 100% CPU indefinitely, resulting in denial of service. | |
| Title | Amlogic DroidLogic SubTitleService Infinite Loop via get_vob_spu() | |
| Weaknesses | CWE-835 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-02T19:44:54.168Z
Updated: 2026-11-02T19:46:51.695Z
Reserved: 2026-10-30T15:31:52.079Z
Link: CVE-2026-119738
No data.
Status : Deferred
Published: 2026-11-02T20:17:38.310
Modified: 2026-11-03T16:30:49.290
Link: CVE-2026-119738
No data.
ReportizFlow