CVE-2018-1000301

curl version curl 7.20.0 to and including curl 7.59.0 contains a CWE-126: Buffer Over-read vulnerability in denial of service that can result in curl can be tricked into reading data beyond the end of a heap based buffer used to store downloaded RTSP content.. This vulnerability appears to have been fixed in curl < 7.20.0 and curl >= 7.60.0.

Weakness

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

Affected Software

Name	Vendor	Start Version	End Version
Debian_linux	Debian	7.0 (including)	7.0 (including)
Debian_linux	Debian	8.0 (including)	8.0 (including)
Debian_linux	Debian	9.0 (including)	9.0 (including)
Red Hat Enterprise Linux 7	RedHat	curl-0:7.29.0-51.el7	*
Red Hat Enterprise Linux 7	RedHat	nss-pem-0:1.0.3-5.el7	*
Red Hat Enterprise Linux 7.4 Advanced Update Support	RedHat	curl-0:7.29.0-42.el7_4.2	*
Red Hat Enterprise Linux 7.4 Telco Extended Update Support	RedHat	curl-0:7.29.0-42.el7_4.2	*
Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions	RedHat	curl-0:7.29.0-42.el7_4.2	*
Red Hat Enterprise Linux 7.5 Extended Update Support	RedHat	curl-0:7.29.0-46.el7_5.1	*
Red Hat Software Collections for Red Hat Enterprise Linux 6	RedHat	httpd24-curl-0:7.61.1-1.el6	*
Red Hat Software Collections for Red Hat Enterprise Linux 6	RedHat	httpd24-httpd-0:2.4.34-7.el6	*
Red Hat Software Collections for Red Hat Enterprise Linux 6	RedHat	httpd24-nghttp2-0:1.7.1-7.el6	*
Red Hat Software Collections for Red Hat Enterprise Linux 7	RedHat	httpd24-curl-0:7.61.1-1.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7	RedHat	httpd24-httpd-0:2.4.34-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7	RedHat	httpd24-nghttp2-0:1.7.1-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS	RedHat	httpd24-curl-0:7.61.1-1.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS	RedHat	httpd24-httpd-0:2.4.34-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS	RedHat	httpd24-nghttp2-0:1.7.1-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS	RedHat	httpd24-curl-0:7.61.1-1.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS	RedHat	httpd24-httpd-0:2.4.34-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS	RedHat	httpd24-nghttp2-0:1.7.1-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS	RedHat	httpd24-curl-0:7.61.1-1.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS	RedHat	httpd24-httpd-0:2.4.34-7.el7	*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS	RedHat	httpd24-nghttp2-0:1.7.1-7.el7	*
Curl	Ubuntu	artful	*
Curl	Ubuntu	bionic	*
Curl	Ubuntu	devel	*
Curl	Ubuntu	trusty	*
Curl	Ubuntu	upstream	*
Curl	Ubuntu	xenial	*

Potential Mitigations

Assume all input is malicious. Use an “accept known good” input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, “boat” may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as “red” or “blue.”
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code’s environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.

https://cwe.mitre.org/data/definitions/540.html

NVD	https://nvd.nist.gov/vuln/detail/CVE-2018-1000301
CWE	https://cwe.mitre.org/data/definitions/125.html

Out-of-bounds Read

Weakness

Affected Software

Potential Mitigations

References

CVE-2018-1000301

Out-of-bounds Read

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References