CVE-2011-1021 describes a local privilege escalation vulnerability in the Linux kernel, specifically within the drivers/acpi/debugfs.c component before version 3.0. An attacker with root privileges can leverage this flaw by writing to the /sys/kernel/debug/acpi/custom_method file, allowing them to modify arbitrary kernel memory locations. The vulnerability has a CVSS score of 3.6 (Low severity) due to its local attack vector and requires existing root access, potentially leading to partial integrity and availability impacts. While not actively exploited in the wild or on the KEV catalog, an ExploitDB entry (EDB-15774) exists, indicating public exploit code availability, though community discussion and media coverage are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.6.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
2.6.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.9:rc1:*:*:*:*:*:* | ||
2.6.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.9:rc2:*:*:*:*:*:* | ||
2.6.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.9:rc3:*:*:*:*:*:* | ||
2.6.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.9:rc4:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:L/AC:L/Au:N/C:N/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.