PT-2017-18555 · Openssl+2 · Openssl+2
Published
2017-12-01
·
Updated
2024-06-15
·
CVE-2017-8821
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Tor versions 0.2.5 through 0.2.5.15
Tor versions 0.2.6 through 0.2.8.16
Tor versions 0.2.9 through 0.2.9.13
Tor versions 0.3.0 through 0.3.0.12
Tor versions 0.3.1 through 0.3.1.8
Description
The issue allows an attacker to cause a denial of service, resulting in an application hang, by providing crafted PEM input that signifies a public key requiring a password. This triggers an attempt by the OpenSSL library to ask the user for the password.
Recommendations
For Tor versions 0.2.5 through 0.2.5.15, update to version 0.2.5.16 or later.
For Tor versions 0.2.6 through 0.2.8.16, update to version 0.2.8.17 or later.
For Tor versions 0.2.9 through 0.2.9.13, update to version 0.2.9.14 or later.
For Tor versions 0.3.0 through 0.3.0.12, update to version 0.3.0.13 or later.
For Tor versions 0.3.1 through 0.3.1.8, update to version 0.3.1.9 or later.
Fix
DoS
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Openssl
Tor