Packages
- libgcrypt20 - LGPL Crypto library
Details
It was discovered that Libgcrypt incorrectly handled crafted ECDH
ciphertext. An attacker could possibly use this issue to cause Libgcrypt to
crash, resulting in a denial of service. (CVE-2026-41989)
It was discovered that Libgcrypt incorrectly handled Dilithium signing. An
attacker could possibly use this issue to cause Libgcrypt to crash,
resulting in a denial of service. This issue only affected Ubuntu 26.04
LTS. (CVE-2026-41990)
It was discovered that Libgcrypt incorrectly handled crafted ECDH
ciphertext. An attacker could possibly use this issue to cause Libgcrypt to
crash, resulting in a denial of service. (CVE-2026-41989)
It was discovered that Libgcrypt incorrectly handled Dilithium signing. An
attacker could possibly use this issue to cause Libgcrypt to crash,
resulting in a denial of service. This issue only affected Ubuntu 26.04
LTS. (CVE-2026-41990)
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 | ||
|---|---|---|---|
| 26.04 LTS resolute | libgcrypt20 – 1.12.0-2ubuntu0.1 | ||
| 25.10 questing | libgcrypt20 – 1.11.0-7ubuntu0.1 | ||
| 24.04 LTS noble | libgcrypt20 – 1.10.3-2ubuntu0.1 | ||
| 22.04 LTS jammy | libgcrypt20 – 1.9.4-3ubuntu3.2 | ||
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