CVE-2020-35452

July 17, 2021

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow

Summary:

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow

Reference Links(if available):

  • http://httpd.apache.org/security/vulnerabilities_24.html
  • https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
  • https://lists.apache.org/thread.html/rccb1b8225583a48c6360edc7a93cc97ae8b0215791e455dc607e7602@%3Cannounce.httpd.apache.org%3E
  • https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd@%3Cdev.httpd.apache.org%3E
  • http://www.openwall.com/lists/oss-security/2021/06/10/5

    • CVSS Score (if available)

    v2: / MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

    Links to Exploits(if available)

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