All the vulnerabilites related to apptainer - apptainer
cve-2023-30549
Vulnerability from cvelistv5
Published
2023-04-25 00:00
Modified
2024-08-02 14:28
Severity ?
EPSS score ?
Summary
Apptainer is an open source container platform for Linux. There is an ext4 use-after-free flaw that is exploitable through versions of Apptainer < 1.1.0 and installations that include apptainer-suid < 1.1.8 on older operating systems where that CVE has not been patched. That includes Red Hat Enterprise Linux 7, Debian 10 buster (unless the linux-5.10 package is installed), Ubuntu 18.04 bionic and Ubuntu 20.04 focal. Use-after-free flaws in the kernel can be used to attack the kernel for denial of service and potentially for privilege escalation.
Apptainer 1.1.8 includes a patch that by default disables mounting of extfs filesystem types in setuid-root mode, while continuing to allow mounting of extfs filesystems in non-setuid "rootless" mode using fuse2fs.
Some workarounds are possible. Either do not install apptainer-suid (for versions 1.1.0 through 1.1.7) or set `allow setuid = no` in apptainer.conf. This requires having unprivileged user namespaces enabled and except for apptainer 1.1.x versions will disallow mounting of sif files, extfs files, and squashfs files in addition to other, less significant impacts. (Encrypted sif files are also not supported unprivileged in apptainer 1.1.x.). Alternatively, use the `limit containers` options in apptainer.conf/singularity.conf to limit sif files to trusted users, groups, and/or paths, and set `allow container extfs = no` to disallow mounting of extfs overlay files. The latter option by itself does not disallow mounting of extfs overlay partitions inside SIF files, so that's why the former options are also needed.
References
| ▼ | URL | Tags |
|---|---|---|
| https://github.com/apptainer/apptainer/security/advisories/GHSA-j4rf-7357-f4cg | x_refsource_CONFIRM | |
| https://github.com/apptainer/apptainer/commit/5a4964f5ba9c8d89a0e353b97f51fd607670a9f7 | x_refsource_MISC | |
| https://github.com/torvalds/linux/commit/2220eaf90992c11d888fe771055d4de3303 | x_refsource_MISC | |
| https://github.com/torvalds/linux/commit/4f04351888a83e595571de672e0a4a8b74f | x_refsource_MISC | |
| https://access.redhat.com/security/cve/cve-2022-1184 | x_refsource_MISC | |
| https://github.com/apptainer/apptainer/releases/tag/v1.1.8 | x_refsource_MISC | |
| https://lwn.net/Articles/932136/ | x_refsource_MISC | |
| https://lwn.net/Articles/932137/ | x_refsource_MISC | |
| https://security-tracker.debian.org/tracker/CVE-2022-1184 | x_refsource_MISC | |
| https://sylabs.io/2023/04/response-to-cve-2023-30549/ | x_refsource_MISC | |
| https://ubuntu.com/security/CVE-2022-1184 | x_refsource_MISC | |
| https://www.suse.com/security/cve/CVE-2022-1184.html | x_refsource_MISC | |
| https://security.gentoo.org/glsa/202311-13 |
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cve-2023-38496
Vulnerability from cvelistv5
Published
2023-07-25 21:02
Modified
2024-10-10 17:31
Severity ?
EPSS score ?
Summary
Apptainer is an open source container platform. Version 1.2.0-rc.2 introduced an ineffective privilege drop when requesting container network setup, therefore subsequent functions are called with root privileges, the attack surface is rather limited for users but an attacker could possibly craft a starter config to delete any directory on the host filesystems. A security fix has been included in Apptainer 1.2.1. There is no known workaround outside of upgrading to Apptainer 1.2.1.
References
| ▼ | URL | Tags |
|---|---|---|
| https://github.com/apptainer/apptainer/security/advisories/GHSA-mmx5-32m4-wxvx | x_refsource_CONFIRM | |
| https://github.com/apptainer/apptainer/pull/1523 | x_refsource_MISC | |
| https://github.com/apptainer/apptainer/pull/1578 | x_refsource_MISC |
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