ID CVE-2017-15710
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*
    cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:*
    cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
    cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
    cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
    cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
CVSS
Base: 5.0 (as of 15-08-2019 - 09:15)
Impact:
Exploitability:
CWE CWE-787
CAPEC
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:N/I:N/A:P
redhat via4
advisories
  • rhsa
    id RHSA-2018:3558
  • rhsa
    id RHSA-2019:0366
  • rhsa
    id RHSA-2019:0367
refmap via4
bid 103512
confirm
debian DSA-4164
mlist
  • [debian-lts-announce] 20180530 [SECURITY] [DLA 1389-1] apache2 security update
  • [oss-security] 20180323 CVE-2017-15710: Out of bound write in mod_authnz_ldap when using too small Accept-Language values
sectrack 1040569
ubuntu
  • USN-3627-1
  • USN-3627-2
  • USN-3937-2
Last major update 15-08-2019 - 09:15
Published 26-03-2018 - 15:29
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