Vulnerability Monitor

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CVE-2017-15710

In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.

Published

2018-03-26T15:29:00.227

Last Modified

2024-11-21T03:15:03.740

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

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

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

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache http_server 2.4.1 Yes
Application apache http_server 2.4.2 Yes
Application apache http_server 2.4.3 Yes
Application apache http_server 2.4.4 Yes
Application apache http_server 2.4.6 Yes
Application apache http_server 2.4.7 Yes
Application apache http_server 2.4.9 Yes
Application apache http_server 2.4.10 Yes
Application apache http_server 2.4.12 Yes
Application apache http_server 2.4.16 Yes
Application apache http_server 2.4.17 Yes
Application apache http_server 2.4.18 Yes
Application apache http_server 2.4.20 Yes
Application apache http_server 2.4.23 Yes
Application apache http_server 2.4.25 Yes
Application apache http_server 2.4.26 Yes
Application apache http_server 2.4.27 Yes
Application apache http_server 2.4.28 Yes
Application apache http_server 2.4.29 Yes
Operating System debian debian_linux 7.0 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System canonical ubuntu_linux 12.04 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 17.10 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Application netapp santricity_cloud_connector - Yes
Application netapp storage_automation_store - Yes
Application netapp storagegrid - Yes
Operating System netapp clustered_data_ontap - Yes
Operating System redhat enterprise_linux 6.0 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 7.4 Yes
Operating System redhat enterprise_linux 7.5 Yes
Operating System redhat enterprise_linux 7.6 Yes
References