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CVE-2018-1000122: Haxx Curl: Information disclosure

CVE-2018-1000122 is rated critical with a CVSS v3.0 base score of 9.1 and affects Haxx Curl, along with 8 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

A buffer over-read exists in curl 7.20.0 to and including curl 7.58.0 in the RTSP+RTP handling code that allows an attacker to cause a denial of service or information leakage

Severity breakdown

CVSS v3.0 9.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
Attack complexity: Low. No special conditions; the attack can be repeated reliably.
Privileges required: None. No account or prior access is needed.
User interaction: None. No action from any user is needed.
Scope: Unchanged. Impact stays within the vulnerable component.
Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
Integrity impact: None. No loss of integrity.
Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-125: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Affected products

Haxx Curl: from 7.20.0 up to and including 7.58.0
Debian Linux: 7.0; 8.0; 9.0
Canonical Ubuntu Linux: 12.04; 14.04; 16.04; 17.10
Red Hat Enterprise Linux Desktop: 7.0
Red Hat Enterprise Linux Server: 7.0
Red Hat Enterprise Linux Workstation: 7.0
Oracle Communications Webrtc Session Controller: before 7.2
Oracle Enterprise Manager Ops Center: 12.2.2; 12.3.3
Oracle Peoplesoft Enterprise Peopletools: 8.55; 8.56; 8.57