id: GO-2021-0100
modules:
    - module: github.com/containers/storage
      versions:
        - fixed: 1.28.1
      vulnerable_at: 1.28.1-0.20210316105906-29dc2106ab59
      packages:
        - package: github.com/containers/storage/pkg/archive
          symbols:
            - cmdStream
          derived_symbols:
            - ApplyLayer
            - ApplyUncompressedLayer
            - Archiver.CopyFileWithTar
            - Archiver.CopyWithTar
            - Archiver.TarUntar
            - Archiver.UntarPath
            - CopyResource
            - CopyTo
            - DecompressStream
            - IsArchivePath
            - Untar
            - UntarPath
            - UntarUncompressed
summary: Denial of service via deadlock in github.com/containers/storage
description: |-
    Due to a goroutine deadlock, using
    github.com/containers/storage/pkg/archive.DecompressStream on a xz archive
    returns a reader which will hang indefinitely when Close is called. An attacker
    can use this to cause denial of service if they are able to cause the caller to
    attempt to decompress an archive they control.
published: 2021-07-28T18:08:05Z
cves:
    - CVE-2021-20291
ghsas:
    - GHSA-7qw8-847f-pggm
credits:
    - Aviv Sasson (Palo Alto Networks)
references:
    - fix: https://github.com/containers/storage/pull/860
    - fix: https://github.com/containers/storage/commit/306fcabc964470e4b3b87a43a8f6b7d698209ee1
    - web: https://bugzilla.redhat.com/show_bug.cgi?id=1939485