First published: Thu Mar 14 2013(Updated: )
Linux kernels which support unprivileged user namespaces (CLONE_NEWUSER) and at the same time allow sharing file system information (CLONE_FS) between parent process and its newly clone(2)d child process in the new user namespace, are vulnerable to a privilege escalation flaw as presented by Sebastian Krahmer in his chroot exploit [1]. [1] <a href="http://stealth.openwall.net/xSports/clown-newuser.c">http://stealth.openwall.net/xSports/clown-newuser.c</a> An unprivileged local user could use this flaw to gain root privileges on a system. Upstream fix: ------------- -> <a href="https://git.kernel.org/linus/e66eded8309ebf679d3d3c1f5820d1f2ca332c71">https://git.kernel.org/linus/e66eded8309ebf679d3d3c1f5820d1f2ca332c71</a> Reference: ---------- -> <a href="http://www.openwall.com/lists/oss-security/2013/03/13/8">http://www.openwall.com/lists/oss-security/2013/03/13/8</a>
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Linux kernel | <=3.8.2 | |
Linux Linux kernel | =3.0-rc1 | |
Linux Linux kernel | =3.0-rc2 | |
Linux Linux kernel | =3.0-rc3 | |
Linux Linux kernel | =3.0-rc4 | |
Linux Linux kernel | =3.0-rc5 | |
Linux Linux kernel | =3.0-rc6 | |
Linux Linux kernel | =3.0-rc7 | |
Linux Linux kernel | =3.0.1 | |
Linux Linux kernel | =3.0.2 | |
Linux Linux kernel | =3.0.3 | |
Linux Linux kernel | =3.0.4 | |
Linux Linux kernel | =3.0.5 | |
Linux Linux kernel | =3.0.6 | |
Linux Linux kernel | =3.0.7 | |
Linux Linux kernel | =3.0.8 | |
Linux Linux kernel | =3.0.9 | |
Linux Linux kernel | =3.0.10 | |
Linux Linux kernel | =3.0.11 | |
Linux Linux kernel | =3.0.12 | |
Linux Linux kernel | =3.0.13 | |
Linux Linux kernel | =3.0.14 | |
Linux Linux kernel | =3.0.15 | |
Linux Linux kernel | =3.0.16 | |
Linux Linux kernel | =3.0.17 | |
Linux Linux kernel | =3.0.18 | |
Linux Linux kernel | =3.0.19 | |
Linux Linux kernel | =3.0.20 | |
Linux Linux kernel | =3.0.21 | |
Linux Linux kernel | =3.0.22 | |
Linux Linux kernel | =3.0.23 | |
Linux Linux kernel | =3.0.24 | |
Linux Linux kernel | =3.0.25 | |
Linux Linux kernel | =3.0.26 | |
Linux Linux kernel | =3.0.27 | |
Linux Linux kernel | =3.0.28 | |
Linux Linux kernel | =3.0.29 | |
Linux Linux kernel | =3.0.30 | |
Linux Linux kernel | =3.0.31 | |
Linux Linux kernel | =3.0.32 | |
Linux Linux kernel | =3.0.33 | |
Linux Linux kernel | =3.0.34 | |
Linux Linux kernel | =3.0.35 | |
Linux Linux kernel | =3.0.36 | |
Linux Linux kernel | =3.0.37 | |
Linux Linux kernel | =3.0.38 | |
Linux Linux kernel | =3.0.39 | |
Linux Linux kernel | =3.0.40 | |
Linux Linux kernel | =3.0.41 | |
Linux Linux kernel | =3.0.42 | |
Linux Linux kernel | =3.0.43 | |
Linux Linux kernel | =3.0.44 | |
Linux Linux kernel | =3.0.45 | |
Linux Linux kernel | =3.0.46 | |
Linux Linux kernel | =3.0.47 | |
Linux Linux kernel | =3.0.48 | |
Linux Linux kernel | =3.0.49 | |
Linux Linux kernel | =3.0.50 | |
Linux Linux kernel | =3.0.51 | |
Linux Linux kernel | =3.0.52 | |
Linux Linux kernel | =3.0.53 | |
Linux Linux kernel | =3.0.54 | |
Linux Linux kernel | =3.0.55 | |
Linux Linux kernel | =3.0.56 | |
Linux Linux kernel | =3.0.57 | |
Linux Linux kernel | =3.0.58 | |
Linux Linux kernel | =3.0.59 | |
Linux Linux kernel | =3.0.60 | |
Linux Linux kernel | =3.0.61 | |
Linux Linux kernel | =3.0.62 | |
Linux Linux kernel | =3.0.63 | |
Linux Linux kernel | =3.0.64 | |
Linux Linux kernel | =3.0.65 | |
Linux Linux kernel | =3.0.66 | |
Linux Linux kernel | =3.0.67 | |
Linux Linux kernel | =3.0.68 | |
Linux Linux kernel | =3.1 | |
Linux Linux kernel | =3.1-rc1 | |
Linux Linux kernel | =3.1-rc2 | |
Linux Linux kernel | =3.1-rc3 | |
Linux Linux kernel | =3.1-rc4 | |
Linux Linux kernel | =3.1.1 | |
Linux Linux kernel | =3.1.2 | |
Linux Linux kernel | =3.1.3 | |
Linux Linux kernel | =3.1.4 | |
Linux Linux kernel | =3.1.5 | |
Linux Linux kernel | =3.1.6 | |
Linux Linux kernel | =3.1.7 | |
Linux Linux kernel | =3.1.8 | |
Linux Linux kernel | =3.1.9 | |
Linux Linux kernel | =3.1.10 | |
Linux Linux kernel | =3.2 | |
Linux Linux kernel | =3.2-rc2 | |
Linux Linux kernel | =3.2-rc3 | |
Linux Linux kernel | =3.2-rc4 | |
Linux Linux kernel | =3.2-rc5 | |
Linux Linux kernel | =3.2-rc6 | |
Linux Linux kernel | =3.2-rc7 | |
Linux Linux kernel | =3.2.1 | |
Linux Linux kernel | =3.2.2 | |
Linux Linux kernel | =3.2.3 | |
Linux Linux kernel | =3.2.4 | |
Linux Linux kernel | =3.2.5 | |
Linux Linux kernel | =3.2.6 | |
Linux Linux kernel | =3.2.7 | |
Linux Linux kernel | =3.2.8 | |
Linux Linux kernel | =3.2.9 | |
Linux Linux kernel | =3.2.10 | |
Linux Linux kernel | =3.2.11 | |
Linux Linux kernel | =3.2.12 | |
Linux Linux kernel | =3.2.13 | |
Linux Linux kernel | =3.2.14 | |
Linux Linux kernel | =3.2.15 | |
Linux Linux kernel | =3.2.16 | |
Linux Linux kernel | =3.2.17 | |
Linux Linux kernel | =3.2.18 | |
Linux Linux kernel | =3.2.19 | |
Linux Linux kernel | =3.2.20 | |
Linux Linux kernel | =3.2.21 | |
Linux Linux kernel | =3.2.22 | |
Linux Linux kernel | =3.2.23 | |
Linux Linux kernel | =3.2.24 | |
Linux Linux kernel | =3.2.25 | |
Linux Linux kernel | =3.2.26 | |
Linux Linux kernel | =3.2.27 | |
Linux Linux kernel | =3.2.28 | |
Linux Linux kernel | =3.2.29 | |
Linux Linux kernel | =3.2.30 | |
Linux Linux kernel | =3.3 | |
Linux Linux kernel | =3.3-rc1 | |
Linux Linux kernel | =3.3-rc2 | |
Linux Linux kernel | =3.3-rc3 | |
Linux Linux kernel | =3.3-rc4 | |
Linux Linux kernel | =3.3-rc5 | |
Linux Linux kernel | =3.3-rc6 | |
Linux Linux kernel | =3.3-rc7 | |
Linux Linux kernel | =3.3.1 | |
Linux Linux kernel | =3.3.2 | |
Linux Linux kernel | =3.3.3 | |
Linux Linux kernel | =3.3.4 | |
Linux Linux kernel | =3.3.5 | |
Linux Linux kernel | =3.3.6 | |
Linux Linux kernel | =3.3.7 | |
Linux Linux kernel | =3.3.8 | |
Linux Linux kernel | =3.4 | |
Linux Linux kernel | =3.4-rc1 | |
Linux Linux kernel | =3.4-rc2 | |
Linux Linux kernel | =3.4-rc3 | |
Linux Linux kernel | =3.4-rc4 | |
Linux Linux kernel | =3.4-rc5 | |
Linux Linux kernel | =3.4-rc6 | |
Linux Linux kernel | =3.4-rc7 | |
Linux Linux kernel | =3.4.1 | |
Linux Linux kernel | =3.4.2 | |
Linux Linux kernel | =3.4.3 | |
Linux Linux kernel | =3.4.4 | |
Linux Linux kernel | =3.4.5 | |
Linux Linux kernel | =3.4.6 | |
Linux Linux kernel | =3.4.7 | |
Linux Linux kernel | =3.4.8 | |
Linux Linux kernel | =3.4.9 | |
Linux Linux kernel | =3.4.10 | |
Linux Linux kernel | =3.4.11 | |
Linux Linux kernel | =3.4.12 | |
Linux Linux kernel | =3.4.13 | |
Linux Linux kernel | =3.4.14 | |
Linux Linux kernel | =3.4.15 | |
Linux Linux kernel | =3.4.16 | |
Linux Linux kernel | =3.4.17 | |
Linux Linux kernel | =3.4.18 | |
Linux Linux kernel | =3.4.19 | |
Linux Linux kernel | =3.4.20 | |
Linux Linux kernel | =3.4.21 | |
Linux Linux kernel | =3.4.22 | |
Linux Linux kernel | =3.4.23 | |
Linux Linux kernel | =3.4.24 | |
Linux Linux kernel | =3.4.25 | |
Linux Linux kernel | =3.4.26 | |
Linux Linux kernel | =3.4.27 | |
Linux Linux kernel | =3.4.28 | |
Linux Linux kernel | =3.4.29 | |
Linux Linux kernel | =3.4.30 | |
Linux Linux kernel | =3.4.31 | |
Linux Linux kernel | =3.4.32 | |
Linux Linux kernel | =3.5.1 | |
Linux Linux kernel | =3.5.2 | |
Linux Linux kernel | =3.5.3 | |
Linux Linux kernel | =3.5.4 | |
Linux Linux kernel | =3.5.5 | |
Linux Linux kernel | =3.5.6 | |
Linux Linux kernel | =3.5.7 | |
Linux Linux kernel | =3.6 | |
Linux Linux kernel | =3.6.1 | |
Linux Linux kernel | =3.6.2 | |
Linux Linux kernel | =3.6.3 | |
Linux Linux kernel | =3.6.4 | |
Linux Linux kernel | =3.6.5 | |
Linux Linux kernel | =3.6.6 | |
Linux Linux kernel | =3.6.7 | |
Linux Linux kernel | =3.6.8 | |
Linux Linux kernel | =3.6.9 | |
Linux Linux kernel | =3.6.10 | |
Linux Linux kernel | =3.6.11 | |
Linux Linux kernel | =3.7 | |
Linux Linux kernel | =3.7.1 | |
Linux Linux kernel | =3.7.2 | |
Linux Linux kernel | =3.7.3 | |
Linux Linux kernel | =3.7.4 | |
Linux Linux kernel | =3.7.5 | |
Linux Linux kernel | =3.7.6 | |
Linux Linux kernel | =3.7.7 | |
Linux Linux kernel | =3.7.8 | |
Linux Linux kernel | =3.7.9 | |
Linux Linux kernel | =3.7.10 | |
Linux Linux kernel | =3.8.0 | |
Linux Linux kernel | =3.8.1 |
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