VDB
DEBIAN-CVE-2026-23456
DEBIAN-CVE-2026-23456
PUBLISHED
CVSS 8.199999809265137 HIGH
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case In decode_int(), the CONS case calls get_bits(bs, 2) to read a length value, then calls get_uint(bs, len) without checking that len bytes remain in the buffer. The existing boundary check only validates the 2 bits for get_bits(), not the subsequent 1-4 bytes that get_uint() reads. This allows a malformed H.323/RAS packet to cause a 1-4 byte slab-out-of-bounds read. Add a boundary check for len bytes after get_bits() and before get_uint().
Risk Scores
CVSS 3.1
8.199999809265137
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | *, 6.13.11-1~exp1, 6.13.2-1~exp1 |
| Debian:13 | linux | 6.12.85-1, 6.12.74-2, 6.12.74-2 |
| Debian:11 | linux | 5.19.6-1, 6.12.27-1, 6.12.27-1 |
| Debian:11 | linux-6.1 | 6.1.106-3, 6.1.106-3, 6.1.106-3 |
| Debian:14 | linux | 6.19.6-1, 6.19.5-1, 6.19.4-1 |
Exploit Intelligence
- 4593.2.0.yml (github-poc)
- 4628.1.0.yml (github-poc)
Timeline
- Apr 3, 2026 CVE Published
- May 2, 2026 CVE Updated