Fix potential CVE in tarfile w/ symlink #2245
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Stealing @nalind 's workaround to avoid refetching content after a file read failure. Under the right circumstances that could be a symlink to a file meant to overwrite a good file with bad data. Testing: ``` goodstuff [1] 14901 127.0.0.1 - - [24/Mar/2020 20:15:50] "GET / HTTP/1.1" 200 - 127.0.0.1 - - [24/Mar/2020 20:15:50] "GET / HTTP/1.1" 200 - no FROM statement found goodstuff ``` Signed-off-by: TomSweeneyRedHat <[email protected]>
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2574: [release-1.11-rhel] fix potential CVE in tarfile w/ symlink r=rhatdan a=nalind #### What type of PR is this? /kind bug #### What this PR does / why we need it: This cherry-picks the fix from #2245 to fix CVE-2020-10696. #### How to verify it #### Which issue(s) this PR fixes: CVE-2020=10696 #### Special notes for your reviewer: #### Does this PR introduce a user-facing change? ``` None ``` Co-authored-by: TomSweeneyRedHat <[email protected]> Co-authored-by: Nalin Dahyabhai <[email protected]>
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2574: [release-1.11-rhel] fix potential CVE in tarfile w/ symlink r=rhatdan a=nalind #### What type of PR is this? /kind bug #### What this PR does / why we need it: This cherry-picks the fix from #2245 to fix CVE-2020-10696. #### How to verify it #### Which issue(s) this PR fixes: CVE-2020=10696 #### Special notes for your reviewer: #### Does this PR introduce a user-facing change? ``` None ``` Co-authored-by: TomSweeneyRedHat <[email protected]> Co-authored-by: Nalin Dahyabhai <[email protected]>
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Stealing @nalind 's workaround to avoid refetching
content after a file read failure. Under the right
circumstances that could be a symlink to a file meant
to overwrite a good file with bad data.
Testing:
Signed-off-by: TomSweeneyRedHat [email protected]