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Handle base64 decoding correctly to avoid panic #26483

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merged 3 commits into from Aug 14, 2023
Merged

Handle base64 decoding correctly to avoid panic #26483

merged 3 commits into from Aug 14, 2023

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wxiaoguang
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Fix the panic if the "base64 secret" is too long.

cmd/web.go:212:func1() [F] PANIC: runtime error: index out of range [2] with length 2
/usr/lib/go/src/runtime/panic.go:114 (0x56498b06155b)
        goPanicIndex: }
/usr/lib/go/src/encoding/base64/base64.go:378 (0x56498b21ee58)
        (*Encoding).decodeQuantum: case 3:
/usr/lib/go/src/encoding/base64/base64.go:546 (0x56498b21fd3e)
        (*Encoding).Decode: return n, err
/build/gitea/src/gitea/modules/setting/oauth2.go:129 (0x56498b689519)
/build/gitea/src/gitea/modules/setting/setting.go:123 (0x56498b6942f3)
/build/gitea/src/gitea/modules/setting/setting.go:108 (0x56498b694224)

@wxiaoguang wxiaoguang added this to the 1.21.0 milestone Aug 14, 2023
@GiteaBot GiteaBot added the lgtm/need 2 This PR needs two approvals by maintainers to be considered for merging. label Aug 14, 2023
@pull-request-size pull-request-size bot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label Aug 14, 2023
@techknowlogick
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Could you add a test case?

@wxiaoguang
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Isn't there already one?

image

@techknowlogick
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@wxiaoguang ah yes, you are right. I tried to get one review in before sleep, but clearly I should've waited until tomorrow ;)

@GiteaBot GiteaBot added lgtm/need 1 This PR needs approval from one additional maintainer to be merged. and removed lgtm/need 2 This PR needs two approvals by maintainers to be considered for merging. labels Aug 14, 2023
@GiteaBot GiteaBot added lgtm/done This PR has enough approvals to get merged. There are no important open reservations anymore. and removed lgtm/need 1 This PR needs approval from one additional maintainer to be merged. labels Aug 14, 2023
@wxiaoguang wxiaoguang enabled auto-merge (squash) August 14, 2023 09:50
@wxiaoguang wxiaoguang merged commit ed1be4c into go-gitea:main Aug 14, 2023
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@Zulgrib
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Zulgrib commented Aug 14, 2023

Thank you @wxiaoguang for your help yesterday, and for the fix!

@wxiaoguang wxiaoguang deleted the fix-base64-panic branch August 14, 2023 10:58
zjjhot added a commit to zjjhot/gitea that referenced this pull request Aug 15, 2023
@zjjhot
Merge remote-tracking branch 'upstream/main'
05f701b 
* upstream/main:
  Use `object-fit: contain` for oauth2 custom icons (go-gitea#26493)
  add disable workflow feature (go-gitea#26413)
  Move dropzone progress bar to bottom to show filename when uploading (go-gitea#26492)
  Handle base64 decoding correctly to avoid panic (go-gitea#26483)
  Allow to archive labels (go-gitea#26478)
@go-gitea go-gitea locked as resolved and limited conversation to collaborators Nov 12, 2023
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@lunny lunny lunny approved these changes

@delvh delvh delvh approved these changes

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@wxiaoguang @techknowlogick @Zulgrib @lunny @delvh @GiteaBot