0acaad1be2
Fix CVE-2021-43784: runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc, netlink is used internally as a serialization system for specifying the relevant container configuration to the `C` portion of the code (responsible for the based namespace setup of containers). In all versions of runc prior to 1.0.3, the encoder did not handle the possibility of an integer overflow in the 16-bit length field for the byte array attribute type, meaning that a large enough malicious byte array attribute could result in the length overflowing and the attribute contents being parsed as netlink messages for container configuration. This vulnerability requires the attacker to have some control over the configuration of the container and would allow the attacker to bypass the namespace restrictions of the container by simply adding their own netlink payload which disables all namespaces. The main users impacted are those who allow untrusted images with untrusted configurations to run on their machines (such as with shared cloud infrastructure). runc version 1.0.3 contains a fix for this bug. As a workaround, one may try disallowing untrusted namespace paths from your container. It should be noted that untrusted namespace paths would allow the attacker to disable namespace protections entirely even in the absence of this bug. https://github.com/opencontainers/runc/releases/tag/v1.0.3 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
4 lines
193 B
Plaintext
4 lines
193 B
Plaintext
# Locally computed
|
|
sha256 0eaf2f6606d72f166a5e7138a8a8d4d8f85d84e43448c08c66a1c93ead17a574 runc-1.0.3.tar.gz
|
|
sha256 552a739c3b25792263f731542238b92f6f8d07e9a488eae27e6c4690038a8243 LICENSE
|