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  1. Confluence Data Center
  2. CONFSERVER-96103

DoS (Denial of Service) org.apache.commons:commons-compress Dependency in Confluence Data Center and Server

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    • 7.5
    • High
    • CVE-2021-36090
    • Atlassian (Internal)
    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    • DoS (Denial of Service)
    • Confluence Data Center, Confluence Server

      This High severity org.apache.commons:commons-compress Dependency vulnerability was introduced in versions 7.19.23, 8.5.10, 8.9.2 of Confluence Data Center and Server.

      This org.apache.commons:commons-compress Dependency vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.

       

      The vulnerable version of this library exists in Confluence but is not being utilised. Because of this our products are not inherently vulnerable and at risk. Upgrading will move to a newer version of the library - but any future upgrades will do the same.

      Data Center

      Atlassian recommends that Confluence Data Center customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

      Affected versions Fixed versions
      from 8.9.2 to 8.9.3 8.9.4
      from 8.5.10 to 8.5.11 LTS 8.9.4 or 8.5.12 LTS recommended
      from 7.19.23 to 7.19.24 LTS 8.9.4 or 8.5.12 LTS recommended or 7.19.25 LTS

       

      Server

      Atlassian recommends that Confluence Server customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

      Affected versions Fixed versions
      from 8.5.10 to 8.5.11 LTS 8.5.12 LTS recommended
      from 7.19.23 to 7.19.24 LTS 8.5.12 LTS recommended or 7.19.25 LTS

       

      The National Vulnerability Database provides the following description for this vulnerability: When reading a specially crafted ZIP archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' zip package.

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