This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
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.
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
References to Advisories, Solutions, and Tools
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OR
*cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
OR
*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Modified Analysis4/17/2019 10:45:23 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:*
*cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
*cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
*cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*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:16.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
*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:7.5:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
Changed
CPE Configuration
OR
*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:17.10:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
OR
*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:9.0:*:*:*:*:*:*:*
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2018:3558 No Types Assigned
https://access.redhat.com/errata/RHSA-2018:3558 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2019:0366 No Types Assigned
https://access.redhat.com/errata/RHSA-2019:0366 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2019:0367 No Types Assigned
https://access.redhat.com/errata/RHSA-2019:0367 Third Party Advisory
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html Mailing List, Third Party Advisory
Changed
Reference Type
https://security.netapp.com/advisory/ntap-20180601-0004/ No Types Assigned
https://security.netapp.com/advisory/ntap-20180601-0004/ Third Party Advisory
Changed
Reference Type
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us No Types Assigned
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3627-2/ No Types Assigned
https://usn.ubuntu.com/3627-2/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3937-2/ No Types Assigned
https://usn.ubuntu.com/3937-2/ Third Party Advisory
CVE Modified by Apache Software Foundation4/10/2019 12:29:00 PM
