oss-sec mailing list archives
CVE request Linux kernel: ns: user namespaces panic
From: P J P <ppandit () redhat com>
Date: Fri, 29 May 2015 22:05:26 +0530 (IST)
Hello,Linux kernel built with the user namespaces support(CONFIG_USER_NS) is vulnerable to a NULL pointer dereference flaw. It could occur when users in user namespaces do unmount mounts.
An unprivileged user could use this flaw to crash the system resulting in DoS. Upstream fixes: --------------- -> https://git.kernel.org/linus/820f9f147dcce2602eefd9b575bbbd9ea14f0953 -> https://git.kernel.org/linus/cd4a40174b71acd021877341684d8bb1dc8ea4ae It was introduced by: --------------------- -> https://git.kernel.org/linus/ce07d891a0891d3c0d0c2d73d577490486b809e1 Thank you Drew Fisher for reporting this issue to Fedora Security Team. Thank you. -- Prasad J Pandit / Red Hat Product Security Team 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
Current thread:
- CVE request Linux kernel: ns: user namespaces panic P J P (May 29)
- Re: CVE request Linux kernel: ns: user namespaces panic Andy Lutomirski (May 29)
- Re: CVE request Linux kernel: ns: user namespaces panic cve-assign (Jun 03)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic P J P (Jun 03)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic Eric W. Biederman (Jun 04)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic P J P (Jun 04)
- Re: CVE request Linux kernel: ns: user namespaces panic cve-assign (Jun 04)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic P J P (Jun 05)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic Eric W. Biederman (Jun 05)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic P J P (Jun 07)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic Eric W. Biederman (Jun 07)
- Re: Re: CVE request Linux kernel: ns: user namespaces panic P J P (Jun 03)