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  5. CVE-2020-28949

CVE-2020-28949: Multiple vulnerabilities through filename manipulation in Archive_Tar

April 22, 2021 (updated October 22, 2025)

Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed. See: https://github.com/pear/Archive_Tar/issues/33

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/pear/archive_tar/CVE-2020-28949.yaml
  • github.com/advisories/GHSA-75c5-f4gw-38r9
  • github.com/pear/Archive_Tar
  • github.com/pear/Archive_Tar/commit/0670a05fdab997036a3fc3ef113b8f5922e574da
  • github.com/pear/Archive_Tar/issues/33
  • lists.debian.org/debian-lts-announce/2020/11/msg00045.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V35LBRM6HBCXBVCITKQ4UEBTXO2EG7B
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KSFM672XW3X6BR7TVKRD63SLZGKK437
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KWM4CTMEGAC4I2CHYNJVSROY4CVXVEUT
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NBYZSHYTIOBK6V7C4N7TP6KIKCRKLVWP
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4V35LBRM6HBCXBVCITKQ4UEBTXO2EG7B
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5KSFM672XW3X6BR7TVKRD63SLZGKK437
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KWM4CTMEGAC4I2CHYNJVSROY4CVXVEUT
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NBYZSHYTIOBK6V7C4N7TP6KIKCRKLVWP
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N
  • nvd.nist.gov/vuln/detail/CVE-2020-28949
  • security.gentoo.org/glsa/202101-23
  • www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-28949
  • www.debian.org/security/2020/dsa-4817
  • www.drupal.org/sa-core-2020-013

Code Behaviors & Features

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Affected versions

All versions before 1.4.11

Fixed versions

  • 1.4.11

Solution

Upgrade to version 1.4.11 or above.

Impact 7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Source file

packagist/pear/archive_tar/CVE-2020-28949.yml

Spotted a mistake? Edit the file on GitLab.

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