CVE-2017-16030

Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier...

CVE-2017-16030

Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier...

CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

DEBIAN-CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

UBUNTU-CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

Design/Logic Flaw

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

CVE-2014-10064

The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example...

Regular Expression Denial Of Service (ReDoS)

forwarded is vulnerable to regular expression denial of service ReDoS. A flaw when the x-forwarded-for header is parsed causes the event loop to be blocked...

Regular Expression Denial Of Service (ReDoS)

fresh is vulnerable to regular expression denial of service ReDoS.The vulnerability exists when matching multiple ETags in If-None-Match which causes the event loop to be blocked...

Regular Expression Denial of Service

Overview Affected versions of slug are vulnerable to a regular expression denial of service when parsing untrusted user input. The issue is low severity, as it takes 50,000 characters to cause the event loop to block for 2 seconds, About 50k characters can block the event loop for 2 seconds...

Regular Expression Denial of Service

Overview Affected versions of timespan are vulnerable to a regular expression denial of service when parsing dates. The amplification for this vulnerability is significant, with 50,000 characters resulting in the event loop being blocked for around 10 seconds. Recommendation No direct patch is...

Regular Expression Denial of Service

Overview Affected versions of marked are vulnerable to a regular expression denial of service. The amplification in this vulnerability is significant, with 1,000 characters resulting in the event loop being blocked for around 6 seconds. Recommendation Update to version 0.3.9 or later. References ...

Regular Expression Denial Of Service (ReDoS)

useragent is vulnerable to denial of service DoS attacks. These attacks are possible through the regular expression used to parse the useragent headers. If an attacker edits their own headers to create an extremely long useragent string, it will cause an event loop which blocks the server...

CVE-2016-5259

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop...

CVE-2016-5259

CVE-2016-5259 : A use-after-free in the Mozilla Firefox function CanonicalizeXPCOMParticipant allows remote code execution via a script that closes its own Service Worker inside a nested sync event loop. Affected: Firefox before 48.0 and Firefox ESR 45.x before 45.3. Impact per sources: arbitrary...

CVE-2016-5259

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop...

Regular Expression Denial of Service

Overview The jshamcrest package is affected by a regular expression denial of service vulnerability when certain types of user input are passed in to the emailAddress validator. Proof of concept var js = require'jshamcrest' var emailAddress = new js.JsHamcrest.Matchers.emailAddress; var genstr =...

Tasks, microtasks, queues and schedules

When I told my colleague Matt Gaunt I was thinking of writing a piece on microtask queueing and execution within the browser's event loop, he said "I'll be honest with you Jake, I'm not going to read that". Well, I've written it anyway, so we're all going to sit here and enjoy it, ok? Actually, i...