This security bulletin contains one medium risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the way curl handles cookies with control codes (byte values below 32). When cookies that contain such control codes are later sent back to an
HTTP(S) server, it might make the server return a 400 response, effectively allowing a "sister site" to deny service to siblings.
Install updates from vendor's website.Vulnerable software versions
cURL: 4.9 - 7.84.0CPE2.3
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?