CVE-2020-8927

A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

Security Fix(es):

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.417 and .NET Runtime 3.1.23.

Security Fix(es):

• dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)

• dotnet: double parser stack buffer overrun (CVE-2022-24512)

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.212 and .NET Runtime 5.0.15.

Security Fix(es):

• dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)

• dotnet: double parser stack buffer overrun (CVE-2022-24512)

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

Security Fix(es):

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.417 and .NET Runtime 3.1.23.

Security Fix(es):

• dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)

• dotnet: double parser stack buffer overrun (CVE-2022-24512)

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 5.0.212 and .NET Runtime 5.0.15.

Security Fix(es):

• dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)

• dotnet: double parser stack buffer overrun (CVE-2022-24512)

• brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library in github.com/google/brotli

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB (CVE-2020-8927).

This update for brotli fixes the following issues:

brotli was updated to 1.0.9:

• CVE-2020-8927: Fix integer overflow when input chunk is longer than 2GiB [boo#1175825]
• brotli -v now reports raw / compressed size
• decoder: minor speed / memory usage improvements
• encoder: fix rare access to uninitialized data in ring-buffer

This update for brotli fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

These are all security issues fixed in the cargo-audit-advisory-db-20220105-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the python310-Brotli-1.1.0-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the python313-Brotli-1.2.0-1.6 package on the GA media of openSUSE Tumbleweed.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB.

An updated version of brotli-sys has not been released. If one cannot update the C library, its authors recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

In Rust the issue can be mitigated by migrating to the brotli crate, which provides a Rust implementation of Brotli compression and decompression that is not affected by this issue.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB.

If one cannot update the C library, its authors recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

This update for brotli fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

This update for python-brotlipy fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

This update for python-brotlipy fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

This update for python-brotlipy fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

This update for python-Brotli fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB. (bsc#1175825)

This update for brotli fixes the following issues:

• CVE-2020-8927: Fixed integer overflow when input chunk is larger than 2GiB (bsc#1175825).

It was discovered that Brotli incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash.