Kritik CVSS 9.1
CVE-2026-23455: Linux Kernel: sınır dışı okuma
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, then decrements it by 1 to skip the protocol discriminator byte before passing it to DecodeH323_UserInformation(). If the encoded length is 0, the decrement wraps to -1, which is then passed as a large value to the decoder, leading to an out-of-bounds read. Add a check to ensure len is positive after the decrement.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - EPSS
- %1,59 (yüzdelik 76)
- CWE
- CWE-125
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 2.6.17 | — | 5.10.253 |
| linux-linux-kernel | 5.11 | — | 5.15.203 |
| linux-linux-kernel | 5.16 | — | 6.1.167 |
| linux-linux-kernel | 6.2 | — | 6.6.130 |
| linux-linux-kernel | 6.7 | — | 6.12.78 |
| linux-linux-kernel | 6.13 | — | 6.18.20 |
| linux-linux-kernel | 6.19 | — | 6.19.10 |
| linux-linux-kernel | 7.0 | 7.0 | — |
| linux-linux-kernel | 7.0 | 7.0 | — |
| linux-linux-kernel | 7.0 | 7.0 | — |
| linux-linux-kernel | 7.0 | 7.0 | — |