CVE-2017-15710
published 2018-03-26CVE-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…
high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
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.
Affected
36 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache | http_server | — | — |
| apache_software_foundation | apache_http_server | — | — |
| apache_software_foundation | apache_http_server | — | — |
| apache_software_foundation | apache_http_server | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH