EUVD-2026-27755

In the Linux kernel, the following vulnerability has been resolved: net: consume xmit errors of GSO frames udpgrofrglist.sh and udpgrobench.sh are the flakiest tests currently in NIPA. They fail in the same exact way, TCP GRO test stalls occasionally and the test gets killed after 10min. These...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001738)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001738 advisory. A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using TC action...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989641)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989641 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: tcprtxsynack can be called from process context Laurent reported the enclosed report 1 This...

UBUNTU-CVE-2022-49372

In the Linux kernel, the following vulnerability has been resolved: tcp: tcprtxsynack can be called from process context Laurent reported the enclosed report 1 This bug triggers with following coditions: 0 Kernel built with CONFIGDEBUGPREEMPT=y 1 A new passive FastOpen TCP socket is created. This...

OESA-2023-1210 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return...

kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using TC action "mirred" a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or SCTP does a...

K26618426: Linux SACK Slowness vulnerability CVE-2019-11478

Security Advisory Description Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This h...

Arista Networks EOS Linux Kernel TCP Multiple DoS (SA0041)

The version of Arista Networks EOS running on the remote device is affected by the following denial of service DoS vulnerabilities related to TCP networking in the Linux kernel, which can be exploited by a remote, unauthenticated attacker: - SACK Panic. The TCPSKBCBskb-tcpgsosegs value is subject...

NewStart CGSL MAIN 4.06 : kernel Multiple Vulnerabilities (NS-SA-2019-0177)

The remote NewStart CGSL host, running version MAIN 4.06, has kernel packages installed that are affected by multiple vulnerabilities: - The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local attacker able to use the...

SUSE-SU-2019:1668-1 Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP1)

This update for the Linux Kernel 3.12.74-6064107 fixes several issues. The following security issues were fixed: - CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless...

CVE-2019-11478

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

CVE-2019-11478

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

Design/Logic Flaw

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1570) (SACK Panic) (SACK Slowness)

Example: The openSUSE Leap 42.3 kernel was updated to 4.4.180 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel pani...

Oracle Linux 6 : kernel (ELSA-2019-1488)

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-1488 advisory. - net tcp: enforce tcpminsndmss in tcpmtuprobing Florian Westphal 1719614 CVE-2019-11479 - net tcp: add tcpminsndmss sysctl Florian Westphal 1719614...

CVE-2019-11478

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

CVE-2019-11478 SACK can cause extensive memory use via fragmented resend queue

Jonathan Looney discovered that the TCP retransmission queue implementation in tcpfragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4686)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4686 advisory. - tcp: enforce tcpminsndmss in tcpmtuprobing Eric Dumazet Orabug: 29886600 CVE-2019-11477 - tcp: add tcpminsndmss sysctl Eric Dumazet Orabug:...

Debian DLA-1823-1 : linux security update (SACK Panic) (SACK Slowness)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-3846, CVE-2019-10126 huangwen reported multiple buffer overflows in the Marvell wifi mwifiex driver, which a local user could use to cause...

SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:1532-1) (SACK Panic) (SACK Slowness)

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.180 to receive various security and bugfixes. The following security bugs were fixed : CVE-2019-11477: A sequence of SACKs may have been crafted such that one can trigger an integer overflow, leading to a kernel panic. CVE-2019-11478: It...