Vulnerability in Linuxfoundation Runc
CVE-2023-27561
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Linuxfoundation Runc
- Debian Linux — versions 10.0
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Red Hat Openshift Container Platform — versions 4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/opencontainers/runc/issues/3751 (Third Party Advisory, Issue Tracking)
- github.com/opencontainers/runc/issues/2197 (Third Party Advisory, Issue Tracking)
- gist.github.com/LiveOverflow/c937820b688922eb127fb760ce06dab9 (Exploit, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/03/msg00023.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-27561?
- CVE-2023-27561 is a high-severity vulnerability in Linuxfoundation Runc, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 7.0/10. Published 2023-03-03.
- How severe is CVE-2023-27561?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2023-27561 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.