Packages
- nettle - low level cryptographic library
Details
It was discovered that Nettle incorrectly handled RSA decryption. A remote
attacker could possibly use this issue to cause Nettle to crash, resulting
in a denial of service. (CVE-2021-3580)
It was discovered that Nettle incorrectly handled certain padding oracles.
A remote attacker could possibly use this issue to perform a variant of the
Bleichenbacher attack. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-16869)
It was discovered that Nettle incorrectly handled RSA decryption. A remote
attacker could possibly use this issue to cause Nettle to crash, resulting
in a denial of service. (CVE-2021-3580)
It was discovered that Nettle incorrectly handled certain padding oracles.
A remote attacker could possibly use this issue to perform a variant of the
Bleichenbacher attack. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-16869)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 21.04 hirsute | libnettle8 – 3.7-2.1ubuntu1.1 | ||
| 20.10 groovy | libnettle8 – 3.6-2ubuntu0.2 | ||
| 20.04 focal | libnettle7 – 3.5.1+really3.5.1-2ubuntu0.2 | ||
| 18.04 bionic | libnettle6 – 3.4.1-0ubuntu0.18.04.1 | ||
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