SB2019093025 - Improper Verification of Cryptographic Signature in Keybase
Published: September 30, 2019 Updated: August 8, 2020
Security Bulletin ID
SB2019093025
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2019-16992)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The Keybase app 2.13.2 for iOS provides potentially insufficient notice that it is employing a user's private key to sign a certain cryptocurrency attestation (that an address at keybase.io can be used for Stellar payments to the user), which might be incompatible with a user's personal position on the semantics of an attestation.
Remediation
Install update from vendor's website.