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CVE-2023-27561

HIGH
7
CVSS Score
Published: March 3, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:45 AM UTC
4 products affected across 3 vendorsDebian LinuxEnterprise LinuxOpenShift Container Platform

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Severity
HIGH7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.0
Runc· Linuxfoundation
95%
v < 1.1.5
Affected range stops below 1.1.5, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
8.09.0
OpenShift Container Platform· Red Hatcontainer
95%
4.0

References (10)

ExploitThird Party Advisory
Source: [email protected]
https://gist.github.com/LiveOverflow/c937820b688922eb127fb760ce06dab9
Issue TrackingThird Party Advisory
Source: [email protected]
https://github.com/opencontainers/runc/issues/2197#issuecomment-1437617334
Issue TrackingThird Party Advisory
Source: [email protected]
https://github.com/opencontainers/runc/issues/3751
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ANUGDBJ7NBUMSUFZUSKU3ZMQYZ2Z3STN/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DHGVGGMKGZSJ7YO67TGGPFEHBYMS63VF/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNB2UEDIIJCRQW4WJLZOPQJZXCVSXMLD/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FYVE3GB4OG3BNT5DLQHYO4M5SXX33AQ5/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-706

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