CVE-2017-15710 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 enc...
HighCVSS 7.5
EPSS 17.5%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/apache2(Debian:12) | < 2.4.33-1 | 2.4.33-1 |
| debian/apache2(Debian:13) | < 2.4.33-1 | 2.4.33-1 |
| debian/apache2(Debian:14) | < 2.4.33-1 | 2.4.33-1 |
| Apache HTTP Server | = 2.4.1 | No fix listed |
| Apache HTTP Server | = 2.4.2 | No fix listed |
| Apache HTTP Server | = 2.4.3 | No fix listed |
| Apache HTTP Server | = 2.4.4 | No fix listed |
| Apache HTTP Server | = 2.4.6 | No fix listed |
| Apache HTTP Server | = 2.4.7 | No fix listed |
| Apache HTTP Server | = 2.4.9 | No fix listed |
| Apache HTTP Server | = 2.4.10 | No fix listed |
| Apache HTTP Server | = 2.4.12 | No fix listed |
| Apache HTTP Server | = 2.4.16 | No fix listed |
| Apache HTTP Server | = 2.4.17 | No fix listed |
| Apache HTTP Server | = 2.4.18 | No fix listed |
| Apache HTTP Server | = 2.4.20 | No fix listed |
| Apache HTTP Server | = 2.4.23 | No fix listed |
| Apache HTTP Server | = 2.4.25 | No fix listed |
| Apache HTTP Server | = 2.4.26 | No fix listed |
| Apache HTTP Server | = 2.4.27 | No fix listed |
| Apache HTTP Server | = 2.4.28 | No fix listed |
| Apache HTTP Server | = 2.4.29 | No fix listed |
| debian linux | = 7.0 | No fix listed |
| debian linux | = 8.0 | No fix listed |
| debian linux | = 9.0 | No fix listed |
Show 38 more
| Product | Affected versions | Fixed in |
|---|---|---|
| Canonical Ubuntu Linux | = 12.04 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| Canonical Ubuntu Linux | = 17.10 | No fix listed |
| Canonical Ubuntu Linux | = 18.04 | No fix listed |
| netapp santricity cloud connector | All versions | No fix listed |
| netapp storage automation store | All versions | No fix listed |
| netapp StorageGRID | All versions | No fix listed |
| netapp clustered data ontap | All versions | No fix listed |
| redhat enterprise linux | = 6.0 | No fix listed |
| redhat enterprise linux | = 7.0 | No fix listed |
| redhat enterprise linux | = 7.4 | No fix listed |
| redhat enterprise linux | = 7.5 | No fix listed |
| redhat enterprise linux | = 7.6 | No fix listed |
| alpine/apache2(Alpine:v3.10) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.11) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.12) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.13) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.14) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.15) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.16) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.17) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.18) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.19) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.20) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.21) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.22) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.23) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.24) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.4) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.5) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.6) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.7) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.8) | < 2.4.33-r0 | 2.4.33-r0 |
| alpine/apache2(Alpine:v3.9) | < 2.4.33-r0 | 2.4.33-r0 |
| Apache HTTP Server | = 2.0.23 to 2.0.65 | No fix listed |
| Apache HTTP Server | = 2.2.0 to 2.2.34 | No fix listed |
| Apache HTTP Server | = 2.4.0 to 2.4.29 | No fix listed |
References
- Debian Security Tracker CVE-2017-15710 vendor-advisory
- [oss-security] 20180323 CVE-2017-15710: Out of bound write in mod_authnz_ldap when using too small Accept-Language values mailing-list third-party-advisory
- 103512 third-party-advisory vdb-entry
- 1040569 third-party-advisory vdb-entry
- RHSA-2018:3558 third-party-advisory vendor-advisory
- RHSA-2019:0366 third-party-advisory vendor-advisory
- RHSA-2019:0367 third-party-advisory vendor-advisory
- httpd.apache.org vendor-advisory
- [httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [10/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [11/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1888194 [10/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [debian-lts-announce] 20180530 [SECURITY] [DLA 1389-1] apache2 security update mailing-list third-party-advisory
- security.netapp.com third-party-advisory
- support.hpe.com third-party-advisory
- USN-3627-1 third-party-advisory vendor-advisory
- USN-3627-2 third-party-advisory vendor-advisory
- USN-3937-2 third-party-advisory vendor-advisory
- DSA-4164 third-party-advisory vendor-advisory
- www.tenable.com
- security.alpinelinux.org vendor-advisory