Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU82064
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-2023-39325
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to excessive consumption of internal resources when handling HTTP/2 requests. A remote attacker can bypass the http2.Server.MaxConcurrentStreams setting by creating new connections while the current connections are still being processed, trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat OpenShift Container Platform: 4.13.0 - 4.13.16
runc (Red Hat package): before 1.1.9-1.rhaos4.13.el9
openshift-clients (Red Hat package): before 4.13.0-202310130726.p0.g717d4a5.assembly.stream.el9
openshift-ansible (Red Hat package): before 4.13.0-202310130944.p0.g2d540c5.assembly.stream.el9
openshift (Red Hat package): before 4.13.0-202310140746.p0.gc7606e7.assembly.stream.el9
kernel-rt (Red Hat package): before 5.14.0-284.36.1.rt14.321.el9_2
kernel (Red Hat package): before 5.14.0-284.36.1.el9_2
crun (Red Hat package): before 1.9.2-1.rhaos4.13.el9
containers-common (Red Hat package): before 1-36.rhaos4.13.el9
External linkshttp://access.redhat.com/errata/RHSA-2023:5675
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: #VU81728
Risk: High
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:H/RL:O/RC:C]
CVE-ID: CVE-2023-44487
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".
Note, the vulnerability is being actively exploited in the wild.
Install updates from vendor's website.
Red Hat OpenShift Container Platform: 4.13.0 - 4.13.16
runc (Red Hat package): before 1.1.9-1.rhaos4.13.el9
openshift-clients (Red Hat package): before 4.13.0-202310130726.p0.g717d4a5.assembly.stream.el9
openshift-ansible (Red Hat package): before 4.13.0-202310130944.p0.g2d540c5.assembly.stream.el9
openshift (Red Hat package): before 4.13.0-202310140746.p0.gc7606e7.assembly.stream.el9
kernel-rt (Red Hat package): before 5.14.0-284.36.1.rt14.321.el9_2
kernel (Red Hat package): before 5.14.0-284.36.1.el9_2
crun (Red Hat package): before 1.9.2-1.rhaos4.13.el9
containers-common (Red Hat package): before 1-36.rhaos4.13.el9
External linkshttp://access.redhat.com/errata/RHSA-2023:5675
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?
Yes. This vulnerability is being exploited in the wild.