Vulnerability Monitor

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CVE-2012-0021

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.

Published

2012-01-28T04:05:00.750

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 2.6 (LOW)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: HIGH
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

4.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache http_server 2.2.17 Yes
Application apache http_server 2.2.18 Yes
Application apache http_server 2.2.19 Yes
Application apache http_server 2.2.20 Yes
Application apache http_server 2.2.21 Yes
References