CVE-2008-5021 is a denial-of-service and potential arbitrary code execution vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to their respective patches. The flaw stems from improper handling of file input element properties during initialization, allowing remote attackers to trigger a crash by manipulating these properties and then calling the blur method, leading to uninitialized memory access. With a CVSS score of 9.3, this vulnerability is considered critical due to its network-based attack vector, medium complexity, and high impact on confidentiality, integrity, and availability. While the vulnerability has a high FAUCET Risk Score, there is no evidence of active exploitation, readily available exploit code (e.g., Metasploit, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.0, < 2.0.0.18CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
>= 3.0, < 3.0.4CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
>= 1.0, < 1.1.13CPE matchmatch criteria | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* | ||
>= 2.0, < 2.0.0.18CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 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.