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CVE-2021-20216

Low priority

Some fixes available 5 of 7

A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is to system availability.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Not affected Fixed Fixed Fixed
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CVE-2021-20215

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the show-status CGI handler when memory allocations fail can lead to a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2021-20214

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the client-tags CGI handler when client tags are configured and memory allocations fail can lead to a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Not affected Not affected
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CVE-2021-20213

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Dereference of a NULL-pointer that could result in a crash if accept-intercepted-requests was enabled, Privoxy failed to get the request destination from the Host header and a...

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2021-20212

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2021-20211

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leak when client tags are active can cause a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Not affected
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CVE-2021-20210

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leak in the show-status CGI handler when no filter files are configured can lead to a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2021-20209

Medium priority
Fixed

A memory leak vulnerability was found in Privoxy before 3.0.29 in the show-status CGI handler when no action files are configured.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2020-35502

Medium priority
Fixed

A flaw was found in Privoxy in versions before 3.0.29. Memory leaks when a response is buffered and the buffer limit is reached or Privoxy is running out of memory can lead to a system crash.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Fixed Fixed Fixed
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CVE-2016-1983

Medium priority

Some fixes available 2 of 4

The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.

1 affected package

privoxy

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS
privoxy Not affected Not affected
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