CVE-2021-30465

high

Description

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

References

https://security.netapp.com/advisory/ntap-20210708-0003/

https://security.gentoo.org/glsa/202107-26

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HOARVIT47RULTTFWAU7XBG4WY6TDDHV/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35ZW6NBZSBH5PWIT7JU4HXOXGFVDCOHH/

https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7r

https://github.com/opencontainers/runc/releases

https://github.com/opencontainers/runc/commit/0ca91f44f1664da834bc61115a849b56d22f595f

http://www.openwall.com/lists/oss-security/2021/05/19/2

https://www.ibm.com/support/pages/node/6462567

https://www.ibm.com/support/pages/node/6456943

https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html

https://bugzilla.opensuse.org/show_bug.cgi?id=1185405

Details

Source: Mitre, NVD

Published: 2021-05-27

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.02424

	
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