Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU31891
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-15586
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in some net/http servers, as demonstrated by the httputil.ReverseProxy Handler. A remote attacker can exploit the race and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
openshift-ansible (Red Hat package): 3.2.42-1.git.0.6b09be9.el7 - 4.4.0-202006061254.git.1.a996454.el7
atomic-openshift-service-idler (Red Hat package): 3.11.43-1.git.14.bbbb450.el7 - 4.4.0-202006080017.git.1.7e463c3.el7
atomic-enterprise-service-catalog (Red Hat package): 3.11.43-1.git.1671.04b17f5.el7 - 4.4.0-202006080017.git.1.77a5cc9.el7
openshift-clients (Red Hat package): 4.2.32-202005020632.git.1.1b0fab9.el8 - 4.4.0-202006061254.git.1.26cb6dc.el8
machine-config-daemon (Red Hat package): 4.2.0-201907161330.git.1.bf8077c.el8 - 4.4.0-202008130707.p0.git.2357.47d462a.el8
cri-o (Red Hat package): 1.0.4-2.git4aceede.el7 - 1.17.4-24.rhaos4.4.git73658e6.el8
openshift-kuryr (Red Hat package): 4.3.1-202002031701.git.1.cfa4a05.el8 - 4.4.0-202008131757.p0.git.1813.8e0365d.el8
openshift (Red Hat package): 4.5.0-202008130146.p0.git.0.aaf1d57.el7 - 4.5.0-202008130146.p0.git.0.aaf1d57.el8
External linkshttp://access.redhat.com/errata/RHBA-2020:4229
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.
EUVDB-ID: #VU45699
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16845
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in "ReadUvarint" and "ReadVarint" in "encoding/binary". A remote attacker can consume all available system resources and cause denial of service conditions.
MitigationInstall updates from vendor's website.
openshift-ansible (Red Hat package): 3.2.42-1.git.0.6b09be9.el7 - 4.4.0-202006061254.git.1.a996454.el7
atomic-openshift-service-idler (Red Hat package): 3.11.43-1.git.14.bbbb450.el7 - 4.4.0-202006080017.git.1.7e463c3.el7
atomic-enterprise-service-catalog (Red Hat package): 3.11.43-1.git.1671.04b17f5.el7 - 4.4.0-202006080017.git.1.77a5cc9.el7
openshift-clients (Red Hat package): 4.2.32-202005020632.git.1.1b0fab9.el8 - 4.4.0-202006061254.git.1.26cb6dc.el8
machine-config-daemon (Red Hat package): 4.2.0-201907161330.git.1.bf8077c.el8 - 4.4.0-202008130707.p0.git.2357.47d462a.el8
cri-o (Red Hat package): 1.0.4-2.git4aceede.el7 - 1.17.4-24.rhaos4.4.git73658e6.el8
openshift-kuryr (Red Hat package): 4.3.1-202002031701.git.1.cfa4a05.el8 - 4.4.0-202008131757.p0.git.1813.8e0365d.el8
openshift (Red Hat package): 4.5.0-202008130146.p0.git.0.aaf1d57.el7 - 4.5.0-202008130146.p0.git.0.aaf1d57.el8
External linkshttp://access.redhat.com/errata/RHBA-2020:4229
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.