The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (extended runtime of kernel code) by creating many different files whose names are associated with the same CRC32C hash value.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 3.0-rc1 (including) | 3.0-rc1 (including) |
| Linux_kernel | Linux | 3.0-rc2 (including) | 3.0-rc2 (including) |
| Linux_kernel | Linux | 3.0-rc3 (including) | 3.0-rc3 (including) |
| Linux_kernel | Linux | 3.0-rc4 (including) | 3.0-rc4 (including) |
| Linux_kernel | Linux | 3.0-rc5 (including) | 3.0-rc5 (including) |
| Linux_kernel | Linux | 3.0-rc6 (including) | 3.0-rc6 (including) |
| Linux_kernel | Linux | 3.0-rc7 (including) | 3.0-rc7 (including) |
| Linux_kernel | Linux | 3.0.1 (including) | 3.0.1 (including) |
| Linux_kernel | Linux | 3.0.2 (including) | 3.0.2 (including) |
| Linux_kernel | Linux | 3.0.3 (including) | 3.0.3 (including) |
| Linux_kernel | Linux | 3.0.4 (including) | 3.0.4 (including) |
| Linux_kernel | Linux | 3.0.5 (including) | 3.0.5 (including) |
| Linux_kernel | Linux | 3.0.6 (including) | 3.0.6 (including) |
| Linux_kernel | Linux | 3.0.7 (including) | 3.0.7 (including) |
| Linux_kernel | Linux | 3.0.8 (including) | 3.0.8 (including) |
| Linux_kernel | Linux | 3.0.9 (including) | 3.0.9 (including) |
| Linux_kernel | Linux | 3.0.10 (including) | 3.0.10 (including) |
| Linux_kernel | Linux | 3.0.11 (including) | 3.0.11 (including) |
| Linux_kernel | Linux | 3.0.12 (including) | 3.0.12 (including) |
| Linux_kernel | Linux | 3.0.13 (including) | 3.0.13 (including) |
| Linux_kernel | Linux | 3.0.14 (including) | 3.0.14 (including) |
| Linux_kernel | Linux | 3.0.15 (including) | 3.0.15 (including) |
| Linux_kernel | Linux | 3.0.16 (including) | 3.0.16 (including) |
| Linux_kernel | Linux | 3.0.17 (including) | 3.0.17 (including) |
| Linux_kernel | Linux | 3.0.18 (including) | 3.0.18 (including) |
| Linux_kernel | Linux | 3.0.19 (including) | 3.0.19 (including) |
| Linux_kernel | Linux | 3.0.20 (including) | 3.0.20 (including) |
| Linux_kernel | Linux | 3.0.21 (including) | 3.0.21 (including) |
| Linux_kernel | Linux | 3.0.22 (including) | 3.0.22 (including) |
| Linux_kernel | Linux | 3.0.23 (including) | 3.0.23 (including) |
| Linux_kernel | Linux | 3.0.24 (including) | 3.0.24 (including) |
| Linux_kernel | Linux | 3.0.25 (including) | 3.0.25 (including) |
| Linux_kernel | Linux | 3.0.26 (including) | 3.0.26 (including) |
| Linux_kernel | Linux | 3.0.27 (including) | 3.0.27 (including) |
| Linux_kernel | Linux | 3.0.28 (including) | 3.0.28 (including) |
| Linux_kernel | Linux | 3.0.29 (including) | 3.0.29 (including) |
| Linux_kernel | Linux | 3.0.30 (including) | 3.0.30 (including) |
| Linux_kernel | Linux | 3.0.31 (including) | 3.0.31 (including) |
| Linux_kernel | Linux | 3.0.32 (including) | 3.0.32 (including) |
| Linux_kernel | Linux | 3.0.33 (including) | 3.0.33 (including) |
| Linux_kernel | Linux | 3.0.34 (including) | 3.0.34 (including) |
| Linux_kernel | Linux | 3.0.35 (including) | 3.0.35 (including) |
| Linux_kernel | Linux | 3.0.36 (including) | 3.0.36 (including) |
| Linux_kernel | Linux | 3.0.37 (including) | 3.0.37 (including) |
| Linux_kernel | Linux | 3.0.38 (including) | 3.0.38 (including) |
| Linux_kernel | Linux | 3.0.39 (including) | 3.0.39 (including) |
| Linux_kernel | Linux | 3.0.40 (including) | 3.0.40 (including) |
| Linux_kernel | Linux | 3.0.41 (including) | 3.0.41 (including) |
| Linux_kernel | Linux | 3.0.42 (including) | 3.0.42 (including) |
| Linux_kernel | Linux | 3.0.43 (including) | 3.0.43 (including) |
| Linux_kernel | Linux | 3.0.44 (including) | 3.0.44 (including) |
| Linux_kernel | Linux | 3.1 (including) | 3.1 (including) |
| Linux_kernel | Linux | 3.1-rc1 (including) | 3.1-rc1 (including) |
| Linux_kernel | Linux | 3.1-rc2 (including) | 3.1-rc2 (including) |
| Linux_kernel | Linux | 3.1-rc3 (including) | 3.1-rc3 (including) |
| Linux_kernel | Linux | 3.1-rc4 (including) | 3.1-rc4 (including) |
| Linux_kernel | Linux | 3.1.1 (including) | 3.1.1 (including) |
| Linux_kernel | Linux | 3.1.2 (including) | 3.1.2 (including) |
| Linux_kernel | Linux | 3.1.3 (including) | 3.1.3 (including) |
| Linux_kernel | Linux | 3.1.4 (including) | 3.1.4 (including) |
| Linux_kernel | Linux | 3.1.5 (including) | 3.1.5 (including) |
| Linux_kernel | Linux | 3.1.6 (including) | 3.1.6 (including) |
| Linux_kernel | Linux | 3.1.7 (including) | 3.1.7 (including) |
| Linux_kernel | Linux | 3.1.8 (including) | 3.1.8 (including) |
| Linux_kernel | Linux | 3.1.9 (including) | 3.1.9 (including) |
| Linux_kernel | Linux | 3.1.10 (including) | 3.1.10 (including) |
| Linux_kernel | Linux | 3.2 (including) | 3.2 (including) |
| Linux_kernel | Linux | 3.2-rc2 (including) | 3.2-rc2 (including) |
| Linux_kernel | Linux | 3.2-rc3 (including) | 3.2-rc3 (including) |
| Linux_kernel | Linux | 3.2-rc4 (including) | 3.2-rc4 (including) |
| Linux_kernel | Linux | 3.2-rc5 (including) | 3.2-rc5 (including) |
| Linux_kernel | Linux | 3.2-rc6 (including) | 3.2-rc6 (including) |
| Linux_kernel | Linux | 3.2-rc7 (including) | 3.2-rc7 (including) |
| Linux_kernel | Linux | 3.2.1 (including) | 3.2.1 (including) |
| Linux_kernel | Linux | 3.2.2 (including) | 3.2.2 (including) |
| Linux_kernel | Linux | 3.2.3 (including) | 3.2.3 (including) |
| Linux_kernel | Linux | 3.2.4 (including) | 3.2.4 (including) |
| Linux_kernel | Linux | 3.2.5 (including) | 3.2.5 (including) |
| Linux_kernel | Linux | 3.2.6 (including) | 3.2.6 (including) |
| Linux_kernel | Linux | 3.2.7 (including) | 3.2.7 (including) |
| Linux_kernel | Linux | 3.2.8 (including) | 3.2.8 (including) |
| Linux_kernel | Linux | 3.2.9 (including) | 3.2.9 (including) |
| Linux_kernel | Linux | 3.2.10 (including) | 3.2.10 (including) |
| Linux_kernel | Linux | 3.2.11 (including) | 3.2.11 (including) |
| Linux_kernel | Linux | 3.2.12 (including) | 3.2.12 (including) |
| Linux_kernel | Linux | 3.2.13 (including) | 3.2.13 (including) |
| Linux_kernel | Linux | 3.2.14 (including) | 3.2.14 (including) |
| Linux_kernel | Linux | 3.2.15 (including) | 3.2.15 (including) |
| Linux_kernel | Linux | 3.2.16 (including) | 3.2.16 (including) |
| Linux_kernel | Linux | 3.2.17 (including) | 3.2.17 (including) |
| Linux_kernel | Linux | 3.2.18 (including) | 3.2.18 (including) |
| Linux_kernel | Linux | 3.2.19 (including) | 3.2.19 (including) |
| Linux_kernel | Linux | 3.2.20 (including) | 3.2.20 (including) |
| Linux_kernel | Linux | 3.2.21 (including) | 3.2.21 (including) |
| Linux_kernel | Linux | 3.2.22 (including) | 3.2.22 (including) |
| Linux_kernel | Linux | 3.2.23 (including) | 3.2.23 (including) |
| Linux_kernel | Linux | 3.2.24 (including) | 3.2.24 (including) |
| Linux_kernel | Linux | 3.2.25 (including) | 3.2.25 (including) |
| Linux_kernel | Linux | 3.2.26 (including) | 3.2.26 (including) |
| Linux_kernel | Linux | 3.2.27 (including) | 3.2.27 (including) |
| Linux_kernel | Linux | 3.2.28 (including) | 3.2.28 (including) |
| Linux_kernel | Linux | 3.2.29 (including) | 3.2.29 (including) |
| Linux_kernel | Linux | 3.2.30 (including) | 3.2.30 (including) |
| Linux_kernel | Linux | 3.3 (including) | 3.3 (including) |
| Linux_kernel | Linux | 3.3-rc1 (including) | 3.3-rc1 (including) |
| Linux_kernel | Linux | 3.3-rc2 (including) | 3.3-rc2 (including) |
| Linux_kernel | Linux | 3.3-rc3 (including) | 3.3-rc3 (including) |
| Linux_kernel | Linux | 3.3-rc4 (including) | 3.3-rc4 (including) |
| Linux_kernel | Linux | 3.3-rc5 (including) | 3.3-rc5 (including) |
| Linux_kernel | Linux | 3.3-rc6 (including) | 3.3-rc6 (including) |
| Linux_kernel | Linux | 3.3-rc7 (including) | 3.3-rc7 (including) |
| Linux_kernel | Linux | 3.3.1 (including) | 3.3.1 (including) |
| Linux_kernel | Linux | 3.3.2 (including) | 3.3.2 (including) |
| Linux_kernel | Linux | 3.3.3 (including) | 3.3.3 (including) |
| Linux_kernel | Linux | 3.3.4 (including) | 3.3.4 (including) |
| Linux_kernel | Linux | 3.3.5 (including) | 3.3.5 (including) |
| Linux_kernel | Linux | 3.3.6 (including) | 3.3.6 (including) |
| Linux_kernel | Linux | 3.3.7 (including) | 3.3.7 (including) |
| Linux_kernel | Linux | 3.3.8 (including) | 3.3.8 (including) |
| Linux_kernel | Linux | 3.4 (including) | 3.4 (including) |
| Linux_kernel | Linux | 3.4-rc1 (including) | 3.4-rc1 (including) |
| Linux_kernel | Linux | 3.4-rc2 (including) | 3.4-rc2 (including) |
| Linux_kernel | Linux | 3.4-rc3 (including) | 3.4-rc3 (including) |
| Linux_kernel | Linux | 3.4-rc4 (including) | 3.4-rc4 (including) |
| Linux_kernel | Linux | 3.4-rc5 (including) | 3.4-rc5 (including) |
| Linux_kernel | Linux | 3.4-rc6 (including) | 3.4-rc6 (including) |
| Linux_kernel | Linux | 3.4-rc7 (including) | 3.4-rc7 (including) |
| Linux_kernel | Linux | 3.4.1 (including) | 3.4.1 (including) |
| Linux_kernel | Linux | 3.4.2 (including) | 3.4.2 (including) |
| Linux_kernel | Linux | 3.4.3 (including) | 3.4.3 (including) |
| Linux_kernel | Linux | 3.4.4 (including) | 3.4.4 (including) |
| Linux_kernel | Linux | 3.4.5 (including) | 3.4.5 (including) |
| Linux_kernel | Linux | 3.4.6 (including) | 3.4.6 (including) |
| Linux_kernel | Linux | 3.4.7 (including) | 3.4.7 (including) |
| Linux_kernel | Linux | 3.4.8 (including) | 3.4.8 (including) |
| Linux_kernel | Linux | 3.4.9 (including) | 3.4.9 (including) |
| Linux_kernel | Linux | 3.4.10 (including) | 3.4.10 (including) |
| Linux_kernel | Linux | 3.4.11 (including) | 3.4.11 (including) |
| Linux_kernel | Linux | 3.4.12 (including) | 3.4.12 (including) |
| Linux_kernel | Linux | 3.4.13 (including) | 3.4.13 (including) |
| Linux_kernel | Linux | 3.4.14 (including) | 3.4.14 (including) |
| Linux_kernel | Linux | 3.4.15 (including) | 3.4.15 (including) |
| Linux_kernel | Linux | 3.4.16 (including) | 3.4.16 (including) |
| Linux_kernel | Linux | 3.4.17 (including) | 3.4.17 (including) |
| Linux_kernel | Linux | 3.4.18 (including) | 3.4.18 (including) |
| Linux_kernel | Linux | 3.4.19 (including) | 3.4.19 (including) |
| Linux_kernel | Linux | 3.4.20 (including) | 3.4.20 (including) |
| Linux_kernel | Linux | 3.4.21 (including) | 3.4.21 (including) |
| Linux_kernel | Linux | 3.4.22 (including) | 3.4.22 (including) |
| Linux_kernel | Linux | 3.4.23 (including) | 3.4.23 (including) |
| Linux_kernel | Linux | 3.4.24 (including) | 3.4.24 (including) |
| Linux_kernel | Linux | 3.5.1 (including) | 3.5.1 (including) |
| Linux_kernel | Linux | 3.5.2 (including) | 3.5.2 (including) |
| Linux_kernel | Linux | 3.5.3 (including) | 3.5.3 (including) |
| Linux_kernel | Linux | 3.5.4 (including) | 3.5.4 (including) |
| Linux_kernel | Linux | 3.5.5 (including) | 3.5.5 (including) |
| Linux_kernel | Linux | 3.5.6 (including) | 3.5.6 (including) |
| Linux_kernel | Linux | 3.5.7 (including) | 3.5.7 (including) |
| Linux_kernel | Linux | 3.6.9 (including) | 3.6.9 (including) |
| Linux_kernel | Linux | 3.6.10 (including) | 3.6.10 (including) |
| Linux_kernel | Linux | 3.6.11 (including) | 3.6.11 (including) |
| Linux_kernel | Linux | 3.7 (including) | 3.7 (including) |
| Linux_kernel | Linux | 3.7.1 (including) | 3.7.1 (including) |
| Linux_kernel | Linux | 3.7.2 (including) | 3.7.2 (including) |
| Linux_kernel | Linux | 3.7.3 (including) | 3.7.3 (including) |
| Linux_kernel | Linux | 3.7.4 (including) | 3.7.4 (including) |
| Linux_kernel | Linux | 3.7.5 (including) | 3.7.5 (including) |
| Linux_kernel | Linux | 3.7.6 (including) | 3.7.6 (including) |
| Linux_kernel | Linux | 3.7.7 (including) | 3.7.7 (including) |
| Linux_kernel | Linux | 3.7.8 (including) | 3.7.8 (including) |
| Linux_kernel | Linux | 3.7.9 (including) | 3.7.9 (including) |
| Linux | Ubuntu | lucid | * |
| Linux | Ubuntu | oneiric | * |
| Linux | Ubuntu | precise | * |
| Linux | Ubuntu | quantal | * |
| Linux | Ubuntu | upstream | * |
| Linux-armadaxp | Ubuntu | precise | * |
| Linux-armadaxp | Ubuntu | quantal | * |
| Linux-armadaxp | Ubuntu | upstream | * |
| Linux-ec2 | Ubuntu | lucid | * |
| Linux-ec2 | Ubuntu | upstream | * |
| Linux-flo | Ubuntu | devel | * |
| Linux-flo | Ubuntu | trusty | * |
| Linux-flo | Ubuntu | trusty/esm | * |
| Linux-flo | Ubuntu | upstream | * |
| Linux-fsl-imx51 | Ubuntu | lucid | * |
| Linux-fsl-imx51 | Ubuntu | upstream | * |
| Linux-goldfish | Ubuntu | devel | * |
| Linux-goldfish | Ubuntu | saucy | * |
| Linux-goldfish | Ubuntu | trusty | * |
| Linux-goldfish | Ubuntu | trusty/esm | * |
| Linux-goldfish | Ubuntu | upstream | * |
| Linux-grouper | Ubuntu | devel | * |
| Linux-grouper | Ubuntu | saucy | * |
| Linux-grouper | Ubuntu | trusty | * |
| Linux-grouper | Ubuntu | upstream | * |
| Linux-linaro-omap | Ubuntu | oneiric | * |
| Linux-linaro-omap | Ubuntu | precise | * |
| Linux-linaro-omap | Ubuntu | quantal | * |
| Linux-linaro-omap | Ubuntu | upstream | * |
| Linux-linaro-shared | Ubuntu | oneiric | * |
| Linux-linaro-shared | Ubuntu | precise | * |
| Linux-linaro-shared | Ubuntu | quantal | * |
| Linux-linaro-shared | Ubuntu | upstream | * |
| Linux-linaro-vexpress | Ubuntu | oneiric | * |
| Linux-linaro-vexpress | Ubuntu | precise | * |
| Linux-linaro-vexpress | Ubuntu | quantal | * |
| Linux-linaro-vexpress | Ubuntu | upstream | * |
| Linux-lts-backport-maverick | Ubuntu | lucid | * |
| Linux-lts-backport-maverick | Ubuntu | upstream | * |
| Linux-lts-backport-oneiric | Ubuntu | lucid | * |
| Linux-lts-backport-oneiric | Ubuntu | upstream | * |
| Linux-lts-quantal | Ubuntu | precise | * |
| Linux-lts-quantal | Ubuntu | upstream | * |
| Linux-lts-raring | Ubuntu | upstream | * |
| Linux-lts-saucy | Ubuntu | upstream | * |
| Linux-lts-trusty | Ubuntu | upstream | * |
| Linux-maguro | Ubuntu | saucy | * |
| Linux-maguro | Ubuntu | trusty | * |
| Linux-maguro | Ubuntu | upstream | * |
| Linux-mako | Ubuntu | devel | * |
| Linux-mako | Ubuntu | saucy | * |
| Linux-mako | Ubuntu | trusty | * |
| Linux-mako | Ubuntu | trusty/esm | * |
| Linux-mako | Ubuntu | upstream | * |
| Linux-manta | Ubuntu | devel | * |
| Linux-manta | Ubuntu | saucy | * |
| Linux-manta | Ubuntu | trusty | * |
| Linux-manta | Ubuntu | trusty/esm | * |
| Linux-manta | Ubuntu | upstream | * |
| Linux-mvl-dove | Ubuntu | lucid | * |
| Linux-mvl-dove | Ubuntu | upstream | * |
| Linux-qcm-msm | Ubuntu | lucid | * |
| Linux-qcm-msm | Ubuntu | oneiric | * |
| Linux-qcm-msm | Ubuntu | precise | * |
| Linux-qcm-msm | Ubuntu | quantal | * |
| Linux-qcm-msm | Ubuntu | upstream | * |
| Linux-ti-omap4 | Ubuntu | oneiric | * |
| Linux-ti-omap4 | Ubuntu | precise | * |
| Linux-ti-omap4 | Ubuntu | quantal | * |
| Linux-ti-omap4 | Ubuntu | raring | * |
| Linux-ti-omap4 | Ubuntu | upstream | * |
References
- http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89
- http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html
- http://openwall.com/lists/oss-security/2012/12/13/20
- http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
- http://www.ubuntu.com/usn/USN-1944-1
- http://www.ubuntu.com/usn/USN-1945-1
- http://www.ubuntu.com/usn/USN-1946-1
- http://www.ubuntu.com/usn/USN-1947-1
- http://www.ubuntu.com/usn/USN-2017-1
- https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89
- http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89
- http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html
- http://openwall.com/lists/oss-security/2012/12/13/20
- http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
- http://www.ubuntu.com/usn/USN-1944-1
- http://www.ubuntu.com/usn/USN-1945-1
- http://www.ubuntu.com/usn/USN-1946-1
- http://www.ubuntu.com/usn/USN-1947-1
- http://www.ubuntu.com/usn/USN-2017-1
- https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89