Apache – CVE-2017-7668


Kayran has detected that the Version of Apache HTTP Server being used has a ap_find_token() Buffer Overread.

CVE-2017-7668 is categorized as an ‘Out-of-bounds Read’ vulnerability (CWE-125).
That means that the software reads data past the end, or before the beginning, of the intended buffer.

The HTTP strict parsing changes added in your version of Apache introduced a bug in token list parsing. That bug allows ap_find_token() to search past the end of its input string.
By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return a wrong value.

There’s a chance that it will cause a decrease in performance and also for interruptions in the availability of resources.
This could also allow attackers to read sensitive information from other memory locations or cause a crash.


To fix CVE-2017-7668, upgrade the version of Apache HTTP Server being used to either 2.2.34 or 2.4.26.




< Return to all Vulnerabilities

The Dark Web

Let’s talk about the darker and more mysterious side of the internet, also known as The Dark Web. You’ve probably heard about it, whether it’s

Read More »