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CVE-2017-15710

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-3937-2
Posted Apr 10, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3937-2 - USN-3937-1 and USN-3627-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 12.04 ESM. Simon Kappel discovered that the Apache HTTP Server mod_auth_digest module incorrectly handled threads. A remote attacker with valid credentials could possibly use this issue to authenticate using another username, bypassing access control restrictions. Various other issues were also addressed.

tags | advisory, remote, web, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-15710, CVE-2018-1301, CVE-2018-1312, CVE-2019-0217
MD5 | ccdfa30fb29254b4a1179649103fba29
Red Hat Security Advisory 2019-0366-01
Posted Feb 22, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0366-01 - This release adds the new Apache HTTP Server 2.4.29 Service Pack 1 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.29, and includes bug fixes and enhancements. Issues addressed include bypass, denial of service, null pointer, out of bounds write, traversal, and use-after-free vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2017-10140, CVE-2017-15710, CVE-2017-15715, CVE-2018-0739, CVE-2018-1000168, CVE-2018-11759, CVE-2018-11763, CVE-2018-1283, CVE-2018-1301, CVE-2018-1302, CVE-2018-1303, CVE-2018-1312, CVE-2018-1333
MD5 | 677751d5be68a0a89b505b85b6621cfd
Red Hat Security Advisory 2019-0367-01
Posted Feb 18, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0367-01 - Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.29 Service Pack 1 serves as an update to Red Hat JBoss Core Services Apache HTTP Server 2.4.29, and includes bug fixes for CVEs which are linked to in the References section. Issues addressed include bypass, denial of service, null pointer, out of bounds write, traversal, and use-after-free vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2017-15710, CVE-2017-15715, CVE-2018-0739, CVE-2018-1000168, CVE-2018-11759, CVE-2018-11763, CVE-2018-1283, CVE-2018-1301, CVE-2018-1302, CVE-2018-1303, CVE-2018-1312, CVE-2018-1333
MD5 | 5914e90114ef4f2c7081a8afaed30780
Red Hat Security Advisory 2018-3558-01
Posted Nov 13, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3558-01 - The Apache HTTP Server is a powerful, efficient, and extensible web server. The httpd24 packages provide a recent stable release of version 2.4 of the Apache HTTP Server, along with the mod_auth_kerb module. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, null pointer, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, web, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586, CVE-2017-1000100, CVE-2017-1000101, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-15710, CVE-2017-15715, CVE-2017-7407, CVE-2017-8816, CVE-2017-8817, CVE-2018-1000007
MD5 | 516f51a00fc5765270c849817fc3f4b4
Ubuntu Security Notice USN-3627-2
Posted May 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3627-2 - USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update provides the corresponding updates for Ubuntu 18.04 LTS. Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server mod_authnz_ldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Elar Lang discovered that the Apache HTTP Server incorrectly handled certain characters specified in <FilesMatch>. A remote attacker could possibly use this issue to upload certain files, contrary to expectations. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-15710, CVE-2017-15715, CVE-2018-1283, CVE-2018-1301, CVE-2018-1303, CVE-2018-1312
MD5 | 642379a7853be14309a167bceaa1d31f
Ubuntu Security Notice USN-3627-1
Posted Apr 19, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3627-1 - Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server mod_authnz_ldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Elar Lang discovered that the Apache HTTP Server incorrectly handled certain characters specified in <FilesMatch>. A remote attacker could possibly use this issue to upload certain files, contrary to expectations. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2017-15710, CVE-2017-15715, CVE-2018-1283, CVE-2018-1301, CVE-2018-1303, CVE-2018-1312
MD5 | e5a14b1abfb9798d648d23b33ff3cbf9
Debian Security Advisory 4164-1
Posted Apr 4, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4164-1 - Several vulnerabilities have been found in the Apache HTTPD server.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2017-15710, CVE-2017-15715, CVE-2018-1283, CVE-2018-1301, CVE-2018-1303, CVE-2018-1312
MD5 | fb946d3e3116932e603a89dd798a5449
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