{"id":"CVE-2017-15710","details":"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.","modified":"2026-05-15T12:03:22.238875254Z","published":"2018-03-26T15:29:00.227Z","related":["SUSE-SU-2018:0879-1","SUSE-SU-2018:0901-1","SUSE-SU-2018:1079-1","SUSE-SU-2018:1161-1","SUSE-SU-2018:1161-2"],"database_specific":{"unresolved_ranges":[{"cpes":["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:*:*:*"],"extracted_events":[{"last_affected":"12.04"},{"last_affected":"14.04"},{"last_affected":"16.04"},{"last_affected":"17.10"},{"last_affected":"18.04"}],"vendor_product":"canonical:ubuntu_linux","source":"CPE_FIELD"},{"cpes":["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:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"7.0"},{"last_affected":"8.0"},{"last_affected":"9.0"}],"source":"CPE_FIELD","vendor_product":"debian:debian_linux"},{"cpes":["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:7.4:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"6.0"},{"last_affected":"7.0"},{"last_affected":"7.4"},{"last_affected":"7.5"},{"last_affected":"7.6"}],"vendor_product":"redhat:enterprise_linux","source":"CPE_FIELD"}]},"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2019-09"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2018/03/24/8"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/103512"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1040569"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3558"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:0366"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:0367"},{"type":"ADVISORY","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180601-0004/"},{"type":"ADVISORY","url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3627-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3627-2/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3937-2/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4164"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}