DEBIAN-CVE-2026-31405

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-31405
Published: 06 Apr 2026, 08:16
Last modified:11 Jun 2026, 09:04

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Apr 2026, 08:16
Published
Vulnerability first disclosed
11 Jun 2026, 09:04
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    all | all | all | < 5.10.257-1 | < 6.1.170-1 | < 6.12.85-1 | < 6.19.10-1

  • debian•linux-6.1

    < 6.1.170-1~deb11u1

References (1)