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CVE-2024-9676

MEDIUMCVSS 6.5/10EPSS 1.34%

Last modified

CVE-2024-9676 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A vulnerability was found in Podman, Buildah, and CRI-O. A symlink traversal vulnerability in the containers/storage library can cause Podman, Buildah, and CRI-O to hang and result in a denial of service via OOM kill when running a malicious image using an automatically assigned user namespace (`--userns=auto` in Podman and Buildah). EPSS estimates a 1.34% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Podman, Buildah, and CRI-O. A symlink traversal vulnerability in the containers/storage library can cause Podman, Buildah, and CRI-O to hang and result in a denial of service via OOM kill when running a malicious image using an automatically assigned user namespace (`--userns=auto` in Podman and Buildah). The containers/storage library will read /etc/passwd inside the container, but does not properly validate if that file is a symlink, which can be used to cause the library to read an arbitrary file on the host.

Metrics

CVSS 3.1
6.5/10

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

EPSS Probability
1.34%

67.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatOpenshift Container Platform4.12
RedhatOpenshift Container Platform4.13
RedhatOpenshift Container Platform4.14
RedhatOpenshift Container Platform4.15
RedhatOpenshift Container Platform4.16
RedhatOpenshift Container Platform4.17
RedhatOpenshift Container Platform For Arm644.12
RedhatOpenshift Container Platform For Arm644.13
RedhatOpenshift Container Platform For Arm644.14
RedhatOpenshift Container Platform For Arm644.15
RedhatOpenshift Container Platform For Arm644.16
RedhatOpenshift Container Platform For Ibm Z4.12
RedhatOpenshift Container Platform For Ibm Z4.13
RedhatOpenshift Container Platform For Ibm Z4.14
RedhatOpenshift Container Platform For Ibm Z4.15
RedhatOpenshift Container Platform For Ibm Z4.16
RedhatOpenshift Container Platform For Linuxone4.12
RedhatOpenshift Container Platform For Linuxone4.13
RedhatOpenshift Container Platform For Linuxone4.14
RedhatOpenshift Container Platform For Linuxone4.15
RedhatOpenshift Container Platform For Linuxone4.16
RedhatOpenshift Container Platform For Power4.12
RedhatOpenshift Container Platform For Power4.13
RedhatOpenshift Container Platform For Power4.14
RedhatOpenshift Container Platform For Power4.15
RedhatOpenshift Container Platform For Power4.16
RedhatEnterprise Linux9.0
RedhatEnterprise Linux Eus9.4
RedhatEnterprise Linux For Arm 649.0_aarch64
RedhatEnterprise Linux For Arm 64 Eus9.4_aarch64
RedhatEnterprise Linux For Ibm Z Systems9.0_s390x
RedhatEnterprise Linux For Ibm Z Systems Eus9.4_s390x
RedhatEnterprise Linux For Power Little Endian9.0_ppc64le
RedhatEnterprise Linux For Power Little Endian Eus9.4_ppc64le
RedhatEnterprise Linux Server Aus9.4
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions9.4_ppc64le

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-9676?
A vulnerability was found in Podman, Buildah, and CRI-O. A symlink traversal vulnerability in the containers/storage library can cause Podman, Buildah, and CRI-O to hang and result in a denial of service via OOM kill when running a malicious image using an automatically assigned user namespace (`--userns=auto` in Podman and Buildah). The containers/storage library will read /etc/passwd inside the container, but does not properly validate if that file is a symlink, which can be used to cause the library to read an arbitrary file on the host.
How severe is CVE-2024-9676?
CVE-2024-9676 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.
How do I fix CVE-2024-9676?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-9676?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST