Buffer Overflow Affecting brotli package, versions [,1.0.8)
Threat Intelligence
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 applications- Snyk IDSNYK-PYTHON-BROTLI-1925013
- published15 Sept 2020
- disclosed15 Sept 2020
- creditUnknown
Introduced: 15 Sep 2020
CVE-2020-8927 (opens in a new tab)How to fix?
Upgrade brotli to version 1.0.8 or higher.
Overview
brotli is a 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.
Affected versions of this package are vulnerable to Buffer Overflow. An attacker could control 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.