Red Hat OpenStack Platform 16.1 update for golang-github-vbatts-tar-split



Published: 2022-03-24
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-34558
CVE-2021-29923
CWE-ID CWE-295
CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Red Hat OpenStack for IBM Power
Server applications / Other server solutions

Red Hat OpenStack
Server applications / Other server solutions

golang-github-vbatts-tar-split (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Certificate Validation

EUVDB-ID: #VU55665

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-34558

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: Yes

Description

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

The vulnerability exists due to improper certificate verification in crypto/tls package in Go when processing X.509 certificates. The application does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack for IBM Power: 16.1

Red Hat OpenStack: 16.1

golang-github-vbatts-tar-split (Red Hat package): 0.11.1-3.el8


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0988

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Input validation error

EUVDB-ID: #VU56829

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-29923

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in net.ParseIP and net.ParseCIDR, as the Go interpreter does not properly consider extraneous zero characters at the beginning of an IP address octet. A remote attacker can bypass access control that is based on IP addresses, because of unexpected octal interpretation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack for IBM Power: 16.1

Red Hat OpenStack: 16.1

golang-github-vbatts-tar-split (Red Hat package): 0.11.1-3.el8


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:0988

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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