High severity7.5NVD Advisory· Published Mar 26, 2018· Updated Jun 17, 2026
CVE-2017-15710
CVE-2017-15710
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.
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Affected products
53- osv-coords15 versionspkg:rpm/suse/apache2&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Studio%20Onsite%201.3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/apache2&distro=SUSE%20OpenStack%20Cloud%207
< 2.4.16-20.16.1+ 14 more
- (no CPE)range: < 2.4.16-20.16.1
- (no CPE)range: < 2.4.16-20.16.1
- (no CPE)range: < 2.4.16-20.16.1
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.2.34-70.15.1
- (no CPE)range: < 2.2.34-70.15.1
- (no CPE)range: < 2.2.34-70.15.1
- (no CPE)range: < 2.2.34-70.15.1
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.4.23-29.18.2
- (no CPE)range: < 2.4.10-14.31.1
- (no CPE)range: < 2.4.23-29.18.2
2.0.23 to 2.0.65+ 19 more
- (no CPE)range: 2.0.23 to 2.0.65
- 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:2.4.3:*:*:*:*:*:*:*
- 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:2.4.7:*:*:*:*:*:*:*
- 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:2.4.12:*:*:*:*:*:*:*
- 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:2.4.18:*:*:*:*:*:*:*
- 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:2.4.25:*:*:*:*:*:*:*
- 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:2.4.28:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*+ 4 more
- 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:*:*:*
- 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:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*+ 4 more
- 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:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
27- www.openwall.com/lists/oss-security/2018/03/24/8nvdMailing ListThird Party Advisory
- www.securityfocus.com/bid/103512nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1040569nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:3558nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0366nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0367nvdThird Party Advisory
- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
- lists.debian.org/debian-lts-announce/2018/05/msg00020.htmlnvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20180601-0004/nvdThird Party Advisory
- support.hpe.com/hpsc/doc/public/displaynvdThird Party Advisory
- usn.ubuntu.com/3627-1/nvdThird Party Advisory
- usn.ubuntu.com/3627-2/nvdThird Party Advisory
- usn.ubuntu.com/3937-2/nvdThird Party Advisory
- www.debian.org/security/2018/dsa-4164nvdThird Party Advisory
- lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Envd
- www.tenable.com/security/tns-2019-09nvd
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