Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade Centos:7
kernel-bootwrapper
to version 0:3.10.0-327.28.2.el7 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper
package and not the kernel-bootwrapper
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.