- Vulnerability/
- USN-3689-1
USN-3689-1: Libgcrypt vulnerability
First published: Tue Jun 19 2018(Updated: )
Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover ECDSA private keys.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/libgcrypt20 | <1.8.1-4ubuntu1.1 | 1.8.1-4ubuntu1.1 |
| =18.04 | ||
| All of | ||
| ubuntu/libgcrypt20 | <1.7.8-2ubuntu1.1 | 1.7.8-2ubuntu1.1 |
| =17.10 | ||
| All of | ||
| ubuntu/libgcrypt20 | <1.6.5-2ubuntu0.5 | 1.6.5-2ubuntu0.5 |
| =16.04 | ||
| All of | ||
| ubuntu/libgcrypt11 | <1.5.3-2ubuntu4.6 | 1.5.3-2ubuntu4.6 |
| =14.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2018-0495
- https://ubuntu.com/security/notices/USN-3692-1
- https://ubuntu.com/security/notices/USN-3692-2
- https://ubuntu.com/security/notices/USN-3689-2
- https://ubuntu.com/security/notices/USN-3850-1
- https://ubuntu.com/security/notices/USN-3850-2
- https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.1-4ubuntu1.1
- https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.8-2ubuntu1.1
- https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.5-2ubuntu0.5
- https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.6
- https://ubuntu.com/security/notices/USN-3689-1 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this Libgcrypt vulnerability?
The vulnerability ID for this Libgcrypt vulnerability is USN-3689-1.
What is the description of the Libgcrypt vulnerability?
The Libgcrypt vulnerability discovered by Keegan Ryan is susceptible to a side-channel attack that could allow a local attacker to recover ECDSA private keys.
Which versions of Ubuntu are affected by the Libgcrypt vulnerability?
The Libgcrypt vulnerability affects Ubuntu versions 18.04, 17.10, 16.04, and 14.04.
How can I fix the Libgcrypt vulnerability on Ubuntu 18.04?
To fix the Libgcrypt vulnerability on Ubuntu 18.04, update the libgcrypt20 package to version 1.8.1-4ubuntu1.1.
Where can I find more information about the Libgcrypt vulnerability?
More information about the Libgcrypt vulnerability can be found on the Ubuntu security page: [link](https://ubuntu.com/security/CVE-2018-0495).
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