SB2019012702 - OpenSUSE Linux update for nodejs4

Description

This security bulletin contains information about 7 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2018-0734)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to unspecified flaw in Digital Signature Algorithm (DSA). A local attacker can conduct a timing side-channel attack and recover the private key, which could be used to conduct further attacks.

2) Improper input validation (CVE-ID: CVE-2018-12116)

The disclosed vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient validation of user-provided input. A remote attacker can provide Unicode data for the path option of an HTTP request to trigger a second, unexpected, and user-defined HTTP request to made to the same server and cause the service to crash.

3) Cross-site scripting (CVE-ID: CVE-2018-12120)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when the Node.js debugger being enabled by passing the --debug or debug flags to Node.js. A remote attacker can make a change to default to localhost, attach to the debug feature and execute arbitrary JavaScript code.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

4) Heap-based buffer overflow (CVE-ID: CVE-2018-12121)

The disclosed vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to heap-based buffer overflow. A remote attacker can send many requests with the maximum size HTTP header of nearly 80kb/connection in combination with carefully handled completion of those headers, trigger memory corruption and cause the Node.js HTTP server to abort.

5) Resource exhaustion (CVE-ID: CVE-2018-12122)

The disclosed vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to the socket is destroyed on the next received chunk when headers are not completely received within this period. A remote attacker can send headers very slowly keeping HTTP or HTTPS connections and associated resources alive for a long period of time, consume excessive resources and cause the service to crash.

6) Spoofing attack (CVE-ID: CVE-2018-12123)

The disclosed vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The vulnerability exists due to security decisions are made about the URL based on the hostname. A remote attacker can use a mixed case "javascript:" (e.g. "javAscript:") protocol and spoof the hostname when a Node.js application is using url.parse()to determine the URL hostname.

7) Side-channel attack (CVE-ID: CVE-2018-5407)

The vulnerability allows a physical attacker to obtain potentially sensitive information.

The vulnerability exists due to due to execution of engine sharing on SMT (e.g.Hyper-Threading) architectures when improper handling of information by the processor. A physical attacker can construct a timing side channel to hijack information from processes that are running in the same core.

Note: the vulnerability has been dubbed as PortSmash microarchitecture bug.

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2019-01/msg00035.html