Debian update for golang-1.11

1) Resource exhaustion

EUVDB-ID: #VU20200

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9512

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of user-supplied input when processing HTTP/2 requests. A remote attacker can send specially crafted HTTP packets to the affected system trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package to version: 1.11.6-1+deb10u1.

Vulnerable software versions

golang-1.11 (Debian package): 1.11.2-1 - 1.11.5-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4503

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU20201

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9514

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of user-supplied input when processing HTTP/2 requests. A remote attacker can send specially crafted HTTP packets to the affected system trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package to version: 1.11.6-1+deb10u1.

Vulnerable software versions

golang-1.11 (Debian package): 1.11.2-1 - 1.11.5-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4503

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Input validation error

EUVDB-ID: #VU20301

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-14809

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to incorrect processing of URLs in net/url, related to the Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. A remote attacker can create a crafted javascript:// URL that in certain situations can be used to bypass authorization checks for some applications.

Mitigation

Update the affected package to version: 1.11.6-1+deb10u1.

Vulnerable software versions

golang-1.11 (Debian package): 1.11.2-1 - 1.11.5-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4503

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2019-9512 CVE-2019-9514 CVE-2019-14809
CWE-ID	CWE-400 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	golang-1.11 (Debian package) Operating systems & Components / Operating system package or component
Vendor	Debian