Home CVE Database CVE-2018-1000005

CVE-2018-1000005

Description

libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers. It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn\'t updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something.

Priority: MEDIUM
CVSS v3: 9.1
Publish Date: Jan 24, 2018
Related ID: --
CVSS v2: CRITICAL
Modified Date: Jan 24, 2018

Find out more about CVE-2018-1000005 from the MITRE-CVE dictionary and NIST NVD


Products Affected

Login may be required to access defects or downloads.

Related Products

Product Name Status Defect Fixed Downloads
Linux 7 SCP Not Vulnerable -- -- --
Linux 7 CGP Not Vulnerable -- -- --

Comments

curl

Live chat
Online