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...

NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0165)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has kernel-rt packages installed that are affected by multiple vulnerabilities: - Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information...

NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0165)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has kernel packages installed that are affected by multiple vulnerabilities: - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While...

EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1639)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. Whil...

Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2019-052)

According to the versions of the parallels-server-bm-release / vzkernel / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - A double-free can happen in idrremoveall in lib/idr.c in the Linux kernel. An unprivileged local attacke...

Greenbone OS - Kernel Denial of Service Vulnerabilities (Jun 2019)

The Kernel in Greenbone OS is prone to multiple denial of service vulnerabilities. SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels

Overview Multiple TCP Selective Acknowledgement SACK and Maximum Segment Size MSS networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels. Description CVE-2019-11477: SACK Panic Linux = 2.6.29. A sequence of specifically crafted selective acknowledgements SA...

CVE-2019-11479

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

CVE-2019-11479

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

Hardcoded credentials

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

Oracle Linux 7 : kernel (ELSA-2019-1481)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-1481 advisory. - net tcp: enforce tcpminsndmss in tcpmtuprobing Florian Westphal 1719914 1719915 CVE-2019-11479 - net tcp: add tcpminsndmss sysctl Florian Westphal...

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...

Debian DLA-1824-1 : linux-4.9 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...

CVE-2019-11479

The CVE-2019-11479 family (SACK/MSS issues on the Linux kernel) stems from a hard-coded MSS of 48 bytes, enabling remote DoS via fragmented TCP handling. Public docs list CVE-2019-11477 (SACK Panic), CVE-2019-11478 (SACK Slowness/Excess Resource Usage), and CVE-2019-11479 (Low MSS) with kernel-wi...

CVE-2019-11479

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

CVE-2019-11479

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

TCP SACK Panic - Linux Kernel Vulnerability

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kerne...

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...

Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2019-4689)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4689 advisory. - tcp: enforce tcpminsndmss in tcpmtuprobing Eric Dumazet Orabug: 29886601 CVE-2019-11477 - tcp: add tcpminsndmss sysctl Eric Dumazet Orabug:...

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:...