CVE-2017-8821 describes a denial-of-service vulnerability in various versions of Tor, including those bundled with Debian Linux. An unauthenticated attacker can trigger an application hang by providing crafted PEM input that prompts OpenSSL for a password. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.2.5.16CPE matchmatch criteria | cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* | ||
>= 0.2.6, < 0.2.8.17CPE matchmatch criteria | cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* | ||
>= 0.2.9, < 0.2.9.14CPE matchmatch criteria | cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* | ||
>= 0.3.0, < 0.3.0.13CPE matchmatch criteria | cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* | ||
>= 0.3.1, < 0.3.1.9CPE matchmatch criteria | cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.
Remediation records are not available for this CVE.