Fix for CVE-2024-33664. JWE limited to 250K #352
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Is this repository still maintained? Would be great to check and merge this PR. |
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Thank you for this work @alistairwatts. Would love to see this PR go in. |
kpqdap
approved these changes
May 14, 2024
Shinnnyshinshin
approved these changes
May 14, 2024
alistairwatts
commented
May 15, 2024
| # data could lead to large memory usage. This helps address This addresses | ||
| # CVE-2024-33664. Also see _decompress() | ||
| if len(jwe_str) > JWE_SIZE_LIMIT: | ||
| raise JWEError("JWE string exceeds {JWE_SIZE_LIMIT} bytes") |
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This should be an f-string.
This was referenced May 21, 2024
Closed
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if @mpdavis does not work maybe @michaeldavis-wf will? |
libo
reviewed
May 29, 2024
| # data could lead to large memory usage. This helps address This addresses | ||
| # CVE-2024-33664. Also see _decompress() | ||
| if len(jwe_str) > JWE_SIZE_LIMIT: | ||
| raise JWEError("JWE string exceeds {JWE_SIZE_LIMIT} bytes") |
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Suggested change
| raise JWEError("JWE string exceeds {JWE_SIZE_LIMIT} bytes") | |
| raise JWEError(f"JWE string exceeds {JWE_SIZE_LIMIT} bytes") |
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Can you rebase your changes onto the latest |
bmwiedemann
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to bmwiedemann/openSUSE
that referenced
this pull request
Jun 3, 2024
https://build.opensuse.org/request/show/1178245 by user dgarcia + anag+factory - Update CVE-2024-33664.patch with upstream mpdavis/python-jose#352 bsc#1223422
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This fix for CVE-2024-33664 ensures that any incoming JWE is under 250K, which seems to be a sensible, albeit large limit. The specific fix for the "zip bomb" issue ensures that we decompress no more that 250K of data. If that limit is reached then a JWEError is raised.
There's rough symmetry here ensuring that both compressed and uncompressed JWE data is no more than 250K.