MGASA-2021-0553 - Updated opencontainers-runc packages fix security vulnerability Publication date: 10 Dec 2021 URL: https://advisories.mageia.org/MGASA-2021-0553.html Type: security Affected Mageia releases: 8 CVE: CVE-2021-43784 It was discovered that there was an overflow issue in runc, the runtime for the Open Container Project, often used with Docker. The Netlink 'bytemsg' length field could have allowed an attacker to override Netlink-based container configurations. This vulnerability required the attacker to have some control over the configuration of the container, but would have allowed the attacker to bypass the namespace restrictions of the container by simply adding their own Netlink payload which disables all namespaces. (CVE-2021-43784) References: - https://bugs.mageia.org/show_bug.cgi?id=29738 - https://www.debian.org/lts/security/2021/dla-2841 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43784 SRPMS: - 8/core/opencontainers-runc-1.0.3-1.mga8
Mageia 2021-0553: opencontainers-runc security update
It was discovered that there was an overflow issue in runc, the runtime for the Open Container Project, often used with Docker
Summary
CVE: CVE-2021-43784
It was discovered that there was an overflow issue in runc, the runtime
for the Open Container Project, often used with Docker. The Netlink
'bytemsg' length field could have allowed an attacker to override
Netlink-based container configurations. This vulnerability required the
attacker to have some control over the configuration of the container, but
would have allowed the attacker to bypass the namespace restrictions of
the container by simply adding their own Netlink payload which disables
all namespaces. (CVE-2021-43784)
Resolution
MGASA-2021-0553 - Updated opencontainers-runc packages fix security vulnerability
References
- https://bugs.mageia.org/show_bug.cgi?id=29738
- https://www.debian.org/lts/security/2021/dla-2841
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43784
Severity
Issued Date: 10 Dec 2021
URL: https://advisories.mageia.org/MGASA-2021-0553.html
Type: security
Affected Mageia releases: 8
News
HOWTOs
About Us
Powered By
