openEuler 20.03 LTS SP1 update for golang



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-27918
CWE-ID CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

golang-devel
Operating systems & Components / Operating system package or component

golang-help
Operating systems & Components / Operating system package or component

golang
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Infinite loop

EUVDB-ID: #VU51486

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-27918

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop when using xml.NewTokenDecoder with a custom TokenReader. A remote attacker can trick a victim to open a specially crafted XML content and cause denial of service conditions.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

golang-devel: before 1.15.7-3

golang-help: before 1.15.7-3

golang: before 1.15.7-3

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1184


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.



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