OESA-2025-2668

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-2668

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2025-2668.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2025-2668

Upstream

CVE-2025-6176

Published

2025-11-14T12:38:57Z

Modified

2025-11-14T13:02:52.485876Z

Summary

brotli security update

Details

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):

Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occurs because brotli can achieve extremely high compression ratios for zero-filled data, leading to excessive memory consumption during decompression.(CVE-2025-6176)

Database specific

{
    "severity": "High"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / brotli

Package

Name: brotli
Purl: pkg:rpm/openEuler/brotli&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.0.9-4.oe2203sp4

Ecosystem specific

{
    "x86_64": [
        "brotli-1.0.9-4.oe2203sp4.x86_64.rpm",
        "brotli-debuginfo-1.0.9-4.oe2203sp4.x86_64.rpm",
        "brotli-debugsource-1.0.9-4.oe2203sp4.x86_64.rpm",
        "brotli-devel-1.0.9-4.oe2203sp4.x86_64.rpm",
        "python3-brotli-1.0.9-4.oe2203sp4.x86_64.rpm"
    ],
    "aarch64": [
        "brotli-1.0.9-4.oe2203sp4.aarch64.rpm",
        "brotli-debuginfo-1.0.9-4.oe2203sp4.aarch64.rpm",
        "brotli-debugsource-1.0.9-4.oe2203sp4.aarch64.rpm",
        "brotli-devel-1.0.9-4.oe2203sp4.aarch64.rpm",
        "python3-brotli-1.0.9-4.oe2203sp4.aarch64.rpm"
    ],
    "noarch": [
        "brotli-help-1.0.9-4.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "brotli-1.0.9-4.oe2203sp4.src.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2025-2668.json"