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 Oracle:8
nodejs
to version 1:12.22.5-1.module+el8.4.0+20308+065a70e3 or higher.
This issue was patched in ELSA-2021-3623
.
Note: Versions mentioned in the description apply only to the upstream nodejs
package and not the nodejs
package as distributed by Oracle
.
See How to fix?
for Oracle:8
relevant fixed versions and status.
The npm package "tar" (aka node-tar) before versions 6.1.1, 5.0.6, 4.4.14, and 3.3.2 has a arbitrary File Creation/Overwrite vulnerability due to insufficient absolute path sanitization. node-tar aims to prevent extraction of absolute file paths by turning absolute paths into relative paths when the preservePaths
flag is not set to true
. This is achieved by stripping the absolute path root from any absolute file paths contained in a tar file. For example /home/user/.bashrc
would turn into home/user/.bashrc
. This logic was insufficient when file paths contained repeated path roots such as ////home/user/.bashrc
. node-tar
would only strip a single path root from such paths. When given an absolute file path with repeating path roots, the resulting path (e.g. ///home/user/.bashrc
) would still resolve to an absolute path, thus allowing arbitrary file creation and overwrite. This issue was addressed in releases 3.2.2, 4.4.14, 5.0.6 and 6.1.1. Users may work around this vulnerability without upgrading by creating a custom onentry
method which sanitizes the entry.path
or a filter
method which removes entries with absolute paths. See referenced GitHub Advisory for details. Be aware of CVE-2021-32803 which fixes a similar bug in later versions of tar.