K23432927: The BIG-IP ASM system may redirect a client request to an incorrect URL

Security Advisory Description The BIG-IP ASM system may redirect a client request to an incorrect URL after the client browser passes the client-side integrity defense JavaScript challenge. This issue occurs when all of the following conditions are met: You have enabled the Client Side Integrity...

K68401558: BIG-IP virtual server TCP sequence numbers vulnerability

Security Advisory Description Attackers in a privileged network position may be able to obtain TCP sequence numbers SEQ from the BIG-IP system for a short period of time up to 4 seconds that will be reused in future connections with the same source and destination port and IP numbers. Impact...

K18263026: The BIG-IP HTTP parser can incorrectly parse a tab character

Security Advisory Description When scanning a URI, the HTTP parser on the BIG-IP system may periodically treat a tab character as white space, which causes incorrect URI parsing. For example, the BIG-IP system receives the following GET string in an HTTP request: GET \t/admin/ HTTP/1.0\r\n\r\n...

K15404: OpenSSL vulnerability CVE-2009-3245

Security Advisory Description OpenSSL before 0.9.8m does not check for a NULL return value from bnwexpand function calls in 1 crypto/bn/bndiv.c, 2 crypto/bn/bngf2m.c, 3 crypto/ec/ec2smpl.c, and 4 engines/eubsec.c, which has unspecified impact and context-dependent attack vectors. CVE-2009-3245...

K23284054: The BIG-IP SMTPS virtual server may fail to properly restrict I/O buffering, allowing attackers to insert commands into encrypted SMTP sessions

Security Advisory Description This issue occurs the following condition is met: A virtual server is configured with a Client SSL profile and an SMTPS profile that has the STARTTLS Activation Mode setting enabled Allow or Require for processing SMTPS traffic. Impact When system receives these SMTP...

K25165813: BIG-IP SSL connection Alert Timeout security exposure

Security Advisory Description The mitigation for K41515225: BIG-IP SSL connection security exposure may not work in all conditions. If after applying the workaround in K41515225: BIG-IP SSL connection security exposure, setting the Alert Timeout to its minimum value of 1 second, you continue to...

K45353544: SSL virtual server vulnerability CVE-2019-6605

Security Advisory Description An undisclosed sequence of packets received by an SSL virtual server and processed by an associated Client SSL or Server SSL profile may cause a denial of service. CVE-2019-6605 Impact This vulnerability allows an unauthorized disruption of service. Security Advisory...

K43404365: BIG-IP APM logs may contain random data after the APM session ID

Security Advisory Description The BIG-IP APM system may log random data after the APM session ID in the /var/log/apm logs. An additional 24 bytes of random information may be logged after the APM session ID. This issue occurs when the following condition is met: You use the ACCESS::log command in...

K56715231: TMM buffer-overflow vulnerability CVE-2021-22991

Security Advisory Description Undisclosed requests to a virtual server may be incorrectly handled by Traffic Management Microkernel TMM URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it theoretically may allow bypass of URL based access...

K25573437: TMM vulnerability CVE-2018-5517

Security Advisory Description Malformed TCP packets sent to a self IP address or a FastL4 virtual server may cause an interruption of service. The control plane is not exposed to this issue. This issue impacts the data plane virtual servers and self IPs. CVE-2018-5517 Impact This vulnerability...

K91414704: BIG-IP Advanced WAF and ASM Brute Force Protection feature may not properly support the Post-Redirect-Get application flow

Security Advisory Description The Advanced WAF and BIG-IP ASM systems may not properly support the Post-Redirect-Get PRG application flow implemented on a back-end web server. This issue occurs when all of the following conditions are met: You enabled brute force protection in your security polic...

K24358905: BIG-IP AFM virtual server vulnerability CVE-2022-23018

Security Advisory Description When a virtual server is configured with both HTTP protocol security and HTTP Proxy Connect profiles, undisclosed requests can cause the Traffic Management Microkernel TMM to terminate. CVE-2022-23018 Impact Traffic is disrupted while the TMM process restarts. This...

K44200194: DNS TCP virtual server vulnerability CVE-2018-5501

Security Advisory Description In some circumstances TCP DNS profile allows excessive buffering due to lack of flow control. CVE-2018-5501 Impact The affected BIG-IP system may experience performance degradation or denial-of-service DoS in the worst-case scenario when the vulnerability is exploite...

K42051445: BIG-IP Advanced WAF and ASM WebSocket vulnerability CVE-2021-23030

Security Advisory Description When a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. CVE-2021-23030 Impact Traffic is disrupted while the bd process restarts. This vulnerability allows a remote attacker to cause a denial-of-service DoS on the...

K33211839: TMM vulnerability CVE-2018-5500

Security Advisory Description Every Multipath TCP MCTCP connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP MCTCP feature enabled will be affected by this issue. CVE-2018-5500 Impact Over a period of time, the memory leak may lead to memory...

K30573026: BIG-IP virtual server with FastL4 profile vulnerability CVE-2022-23027

Security Advisory Description When a FastL4 profile and an HTTP, FIX, and/or hash persistence profile are configured on the same virtual server, undisclosed requests can cause the virtual server to stop processing new client connections. CVE-2022-23027 Impact Traffic is disrupted for new client...

K14229426: BIG-IP SSL vulnerability CVE-2022-29491

Security Advisory Description When a virtual server is configured with HTTP, TCP on one side client/server, and DTLS on the other server/client, undisclosed requests can cause the TMM process to terminate. CVE-2022-29491 Impact Traffic is disrupted while the TMM process restarts. This vulnerabili...

K45421311: BIG-IP TMM vulnerability CVE-2020-5925

Security Advisory Description Undisclosed internally-generated User Datagram Protocol UDP traffic may cause the Traffic Management Microkernel TMM to restart under some circumstances.CVE-2020-5925 A BIG-IP system experiencing this vulnerability may log the following error message to the...

K79933541: HTTP2 profile vulnerability CVE-2022-35236

Security Advisory Description When an HTTP2 profile is configured on a virtual server, undisclosed traffic can cause an increase in memory resource utilization. CVE-2022-35236 Impact System performance can degrade until the TMM process is either forced to restart or is manually restarted. This...

K10930474: TMM vulnerability CVE-2017-6155

Security Advisory Description Malformed SPDY or HTTP/2 requests may result in a disruption of service to TMM. Data plane is only exposed when a SPDY or HTTP/2 profile is attached to a virtual server. There is no control plane exposure. CVE-2017-6155 Impact An attacker may be able to disrupt traff...