CVE-2009-4307 describes a denial-of-service vulnerability in the Linux kernel's ext4 filesystem, specifically within the ext4_fill_flex_info function. An attacker can trigger a divide-by-zero error and system panic by providing a specially crafted ext4 filesystem with a large FLEX_BG group size. This vulnerability has a CVSS score of 7.1, indicating high severity due to its network-accessible attack vector and complete availability impact, though it requires medium attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.6.32CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
2.6.0CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* | ||
2.6.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:* | ||
2.6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:* | ||
2.6.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.