Cyber Resilience

CVE-2023-27561

Redhat Enterprise Linux 8.0 … 9.0

Public PoC
Published
03 March 2023
Modified
06 December 2024
CVSS Score v3.1 7.0
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0044 37th percentile
Risk Priority 51 floored blend · peak EPSS

Summary

CVE-2023-27561 is a high-severity Use of Incorrectly-Resolved Name or Reference (CWE-706) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 7.0 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked at the 37th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

runc through 1.1.4 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. NOTE: this…

more

issue exists because of a CVE-2019-19921 regression.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1034 Path Interception Persistence
**This technique has been deprecated.
T1574.008 Path Interception by Search Order Hijacking Stealth
Adversaries may execute their own malicious payloads by hijacking the search order used to load other programs.
T1036 Masquerading Stealth
Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-36383Shared CWE-706
CVE-2026-29036Shared CWE-706
CVE-2025-29914Shared CWE-706
CVE-2024-55058Shared CWE-706
CVE-2026-42254Shared CWE-706
CVE-2026-41402Shared CWE-706
CVE-2021-40539Shared CWE-706
CVE-2026-10696Shared CWE-706
CVE-2024-51746Shared CWE-706
CVE-2026-1230Shared CWE-706

Affected Assets

linuxfoundation
runc
≤ 1.1.5
redhat
openshift container platform
4.0
redhat
enterprise linux
8.0, 9.0
debian
debian linux
10.0

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices directly prevent incorrect name/reference resolution bugs during coding.

PR.AA-05 partial match
prevents

Enforced authorization boundaries limit damage from an incorrectly resolved reference.

PR.IR-01 partial match
prevents

Logical segmentation and access controls reduce the chance an out-of-sphere resolution succeeds.

PR.PS-01 partial match
prevents

Hardened configuration baselines can constrain allowable name-to-resource mappings.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing can detect incorrect name or reference resolution through fuzzing and negative test cases.

degrades

Network segmentation and routing policies reduce the chance that a mis-resolved name leads to an unintended external resource.

degrades

Segregated networks limit the blast radius when a name or reference resolves outside the intended control sphere.

prevents

Secure SDLC practices include design reviews that can catch incorrect name or reference handling before deployment.

prevents

Application security requirements can mandate validation of all external references and names used at runtime.

prevents

Secure architecture principles discourage reliance on ambient or globally-resolvable names without explicit scoping.

References