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Update runc to 6635b4f (fix CVE-2019-5736)

- Fixes a vulnerability in runc that allows a container escape (CVE-2019-5736)
https://github.com/opencontainers/runc/commit/6635b4f0c6af3810594d2770f662f34ddc15b40d,
- Includes security fix for `runc run --no-pivot` (`DOCKER_RAMDISK=1`):
https://github.com/opencontainers/runc/commit/28a697cce3e4f905dca700eda81d681a30eef9cd
(NOTE: the vuln is attackable only when `DOCKER_RAMDISK=1` is set && seccomp is disabled)

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Sebastiaan van Stijn authored on 2019/02/12 22:05:25
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@@ -4,7 +4,7 @@
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 # The version of runc should match the version that is used by the containerd
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 # version that is used. If you need to update runc, open a pull request in
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 # the containerd project first, and update both after that is merged.
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-RUNC_COMMIT=96ec2177ae841256168fcf76954f7177af9446eb
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+RUNC_COMMIT=6635b4f0c6af3810594d2770f662f34ddc15b40d
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 install_runc() {
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 	# If using RHEL7 kernels (3.10.0 el7), disable kmem accounting/limiting