Home / mailings [USN-7633-1] Nix vulnerabilities
Posted on 14 July 2025
Ubuntu Security==========================================================================Ubuntu Security Notice USN-7633-1
July 14, 2025
nix vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in Nix.
Software Description:
- nix: Cross-platform package manager
Details:
Linus Heckemann discovered that Nix did not correctly handle certain
binaries. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2024-38531)
Pierre-Etienne Meunier discovered that Nix did not correctly handle TLS
certificates. A remote attacker could possibly use this issue to leak
sensitive information. (CVE-2024-47174)
It was discovered that Nix did not correctly handle Unix sockets. An
attacker could possibly use this issue execute arbitrary code. This issue
only affected Ubuntu 24.04 LTS. (CVE-2024-27297)
It was discovered that Nix did not correctly handle unpacking Nix
archives (NARS). If a user or automated system were tricked into opening
a specially crafted file, an attacker could possibly use this issue to
cause a denial of service or execute arbitrary code. (CVE-2024-45593)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
nix-bin 2.18.1+dfsg-1ubuntu5+esm2
Available with Ubuntu Pro
Ubuntu 22.04 LTS
nix-bin 2.6.0+dfsg-3ubuntu0.1~esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-7633-1
CVE-2024-27297, CVE-2024-38531, CVE-2024-45593, CVE-2024-47174
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