CVE-2021-42008 is a high-severity slab out-of-bounds write vulnerability in the Linux kernel's 6pack driver (drivers/net/hamradio/6pack.c), affecting versions before 5.13.13, including Debian and NetApp products. An attacker with CAP_NET_ADMIN capability can exploit this local vulnerability to achieve root access, leading to full compromise of confidentiality, integrity, and availability. Despite its high CVSS score of 7.8, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has seen minimal community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.6.12, < 4.4.282CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.5, < 4.9.281CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.10, < 4.14.245CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.15, < 4.19.205CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.20, < 5.4.143CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
Oct 12, 2021kernel: slab out-of-bounds write in decode_data() in drivers/net/hamradio/6pack.c
Aug 16, 2021