668 matches found
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
CVE-2020-7451
In FreeBSD 12.1-STABLE before r358739, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r358740, and 11.3-RELEASE before 11.3-RELEASE-p7, a TCP SYN-ACK or challenge TCP-ACK segment over IPv6 that is transmitted or retransmitted does not properly initialize the Traffic Class field disclosin...
CVE-2020-7451
In FreeBSD 12.1-STABLE before r358739, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r358740, and 11.3-RELEASE before 11.3-RELEASE-p7, a TCP SYN-ACK or challenge TCP-ACK segment over IPv6 that is transmitted or retransmitted does not properly initialize the Traffic Class field disclosin...
CVE-2020-7451
CVE-2020-7451 affects FreeBSD: TCP servers sending or retransmitting IPv6 SYN-ACK (and challenge ACK) segments may disclose one byte of kernel memory due to Traffic Class not initialized. Affected: FreeBSD 12.1-STABLE before r358739, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r358740...
CVE-2020-7451: Use of Uninitialized Resource
In FreeBSD 12.1-STABLE before r358739, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r358740, and 11.3-RELEASE before 11.3-RELEASE-p7, a TCP SYN-ACK or challenge TCP-ACK segment over IPv6 that is transmitted or retransmitted does not properly initialize the Traffic Class field disclosin...
Denial Of Service (DoS)
The kernel package is vulnerable to Denial Of Service DoS. A race condition was found in the mac80211 implementation, a framework used for writing drivers for wireless devices. An attacker could trigger this flaw by sending a Delete Block ACK DELBA packet to a target system, resulting in a remote...
Update Rollup 3 for System Center 2012 R2 Operations Manager
Update Rollup 3 for System Center 2012 R2 Operations Manager Introduction This article describes the issues that are fixed in Update Rollup 3 for Microsoft System Center 2012 R2 Operations Manager. Additionally, this article contains the installation instructions for Update Rollup 3 for System...
PT-2020-6804
Name of the Vulnerable Software and Affected Versions Systemd version 245 Description An exploitable denial-of-service issue exists due to a DHCP ACK spoofing attack. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable. An attacker can forge a pa...
PT-2020-19587
Name of the Vulnerable Software and Affected Versions FreeBSD versions 12.1-STABLE before r358739 FreeBSD versions 12.1-RELEASE before 12.1-RELEASE-p3 FreeBSD versions 11.3-STABLE before r358740 FreeBSD versions 11.3-RELEASE before 11.3-RELEASE-p7 Description A TCP SYN-ACK or challenge TCP-ACK...
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
CVE-2019-18625
An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST...
UBUNTU-CVE-2019-18792
An issue was discovered in Suricata 5.0.0. It is possible to bypass/evade any tcp based signature by overlapping a TCP segment with a fake FIN packet. The fake FIN packet is injected just before the PUSH ACK packet we want to bypass. The PUSH ACK packet containing the data will be ignored by...
CVE-2019-18625: Undefined Security Weakness
An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST...
New Linux Bug Lets Attackers Hijack Encrypted VPN Connections
A team of cybersecurity researchers has disclosed a new severe vulnerability affecting most Linux and Unix-like operating systems, including FreeBSD, OpenBSD, macOS, iOS, and Android, that could allow remote 'network adjacent attackers' to spy on and tamper with encrypted VPN connections. The...
HTTP/2: flood using PING frames results in unbounded memory growth
A flaw was found in HTTP/2. Using PING frames and queuing of response PING ACK frames, a flood attack could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
UBUNTU-CVE-2019-18805
An issue was discovered in net/ipv4/sysctlnetipv4.c in the Linux kernel before 5.0.11. There is a net/ipv4/tcpinput.c signed integer overflow in tcpackupdatertt when userspace writes a very large integer to /proc/sys/net/ipv4/tcpminrttwlen, leading to a denial of service or possibly unspecified...
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
CVE-2019-15134
RIOT through 2019.07 contains a memory leak in the TCP implementation gnrctcp, allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to receive in sys/net/gnrc/transportlayer/tcp/gnrctcpeventloop.c...
CVE-2019-15134
RIOT through 2019.07 contains a memory leak in the TCP implementation gnrctcp, allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to receive in sys/net/gnrc/transportlayer/tcp/gnrctcpeventloop.c...