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CVE-2023-30549

24
FAUCET Score

CVE-2023-30549 is an ext4 use-after-free flaw affecting Apptainer versions prior to 1.1.0 and apptainer-suid installations below 1.1.8 on specific older Linux distributions. This vulnerability, rated High severity (CVSS 7.8), allows a local attacker to potentially cause a denial of service or achieve privilege escalation by exploiting the kernel. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected Apptainer versions on vulnerable operating systems should apply the patch in Apptainer 1.1.8 or implement recommended workarounds.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.8CPE matchmatch criteria
cpe:2.3:a:lfprojects:apptainer:*:*:*:*:*:go:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 68th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/apptainer/apptainerFixed in: 1.1.8

Vendor Advisories (1)

goGHSA-j4rf-7357-f4cghigh

Unpatched extfs vulnerabilities are exploitable through suid-mode Apptainer

Apr 25, 2023

References

access.redhat.com / security/cve/cve-2022-1184
Not Applicable
github.com / apptainer/apptainer/commit/5a4964f5ba9c8d89a0e353b97f51fd607670a9f7
Patch
github.com / apptainer/apptainer/releases/tag/v1.1.8
Release Notes
github.com / apptainer/apptainer/security/advisories/GHSA-j4rf-7357-f4cg
MitigationVendor Advisory
github.com / torvalds/linux/commit/2220eaf90992c11d888fe771055d4de3303
github.com / torvalds/linux/commit/4f04351888a83e595571de672e0a4a8b74f
lwn.net / Articles/932136
lwn.net / Articles/932137
security.gentoo.org / glsa/202311-13
security-tracker.debian.org / tracker/CVE-2022-1184
Not Applicable
sylabs.io / 2023/04/response-to-cve-2023-30549
ubuntu.com / security/CVE-2022-1184
Not Applicable
suse.com / security/cve/CVE-2022-1184.html
Not Applicable