CVE-2014-9708

Embedthis Appweb before 4.6.6 and 5.x before 5.2.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via a Range header with an empty value, as demonstrated by Range: x=,.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://packetstormsecurity.com/files/131157/Appweb-Web-Server-Denial-Of-Service.html
• http://seclists.org/fulldisclosure/2015/Apr/19
• http://seclists.org/fulldisclosure/2015/Mar/158
• http://www.openwall.com/lists/oss-security/2015/03/28/2
• http://www.openwall.com/lists/oss-security/2015/04/06/2
• http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
• http://www.securityfocus.com/archive/1/535028/100/0/threaded
• http://www.securityfocus.com/archive/1/archive/1/535028/100/1400/threaded
• http://www.securityfocus.com/bid/73407
• http://www.securitytracker.com/id/1037007
• https://github.com/embedthis/appweb/commit/7e6a925f5e86a19a7934a94bbd6959101d0b84eb#diff-7ca4d62c70220e0e226e7beac90c95d9L17348
• https://github.com/embedthis/appweb/issues/413
• https://security.paloaltonetworks.com/CVE-2014-9708
• https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved?language=en_US