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Files Date: 2021-04-13

Ubuntu Security Notice USN-4912-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4912-1 - Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux kernel did not properly validate computation of branch displacements in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-0423, CVE-2020-0465, CVE-2020-0466, CVE-2020-14351, CVE-2020-14390, CVE-2020-25285, CVE-2020-25645, CVE-2020-25669, CVE-2020-27830, CVE-2020-36158, CVE-2021-20194, CVE-2021-29154, CVE-2021-3178, CVE-2021-3411
MD5 | 1bded3d10c58ff192a0d70e344750ce6
Ubuntu Security Notice USN-4911-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4911-1 - It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. A local attacker could use this to cause a denial of service. Jan Beulich discovered that the Xen netback backend in the Linux kernel did not properly handle certain error conditions under paravirtualization. An attacker in a guest VM could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-25639, CVE-2021-28038, CVE-2021-28375, CVE-2021-28950
MD5 | 17a8d3f50ac352ee2cdc57eebb059c80
Ubuntu Security Notice USN-4909-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4909-1 - Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service. Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schoenherr discovered that the Xen paravirtualization backend in the Linux kernel did not properly propagate errors to frontend drivers in some situations. An attacker in a guest VM could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-20194, CVE-2021-26930, CVE-2021-26931, CVE-2021-3348
MD5 | 11c485ca84d2ebfc2048c3feb0913e4e
Ubuntu Security Notice USN-4910-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4910-1 - Ryota Shiga discovered that the sockopt BPF hooks in the Linux kernel could allow a user space program to probe for valid kernel addresses. A local attacker could use this to ease exploitation of another kernel vulnerability. It was discovered that the BPF verifier in the Linux kernel did not properly handle signed add32 and sub integer overflows. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-20239, CVE-2021-20268, CVE-2021-3178, CVE-2021-3347, CVE-2021-3348
MD5 | d7eb415bed1a211e71edee6d90a8ed16
Ubuntu Security Notice USN-4907-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4907-1 - Wen Xu discovered that the xfs file system implementation in the Linux kernel did not properly validate the number of extents in an inode. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service. It was discovered that the priority inheritance futex implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-13095, CVE-2021-3347, CVE-2021-3348
MD5 | 2715302b59fea77c929d49d3d104d3c0
Ubuntu Security Notice USN-4904-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4904-1 - Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1350, CVE-2017-16644, CVE-2017-5967, CVE-2018-13095, CVE-2019-16231, CVE-2019-16232, CVE-2019-19061, CVE-2021-20261, CVE-2021-26930, CVE-2021-26931, CVE-2021-28038
MD5 | 6b027bc7155bd5704a852358599f76f9
Ubuntu Security Notice USN-4906-1
Posted Apr 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4906-1 - It was discovered that Nettle incorrectly handled signature verification. A remote attacker could use this issue to cause Nettle to crash, resulting in a denial of service, or possibly force invalid signatures.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2021-20305
MD5 | c2e4fcc4e7b04575de37436facddec21
Red Hat Security Advisory 2021-1171-01
Posted Apr 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1171-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow and out of bounds read vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-27363, CVE-2021-27364, CVE-2021-27365
MD5 | fd7794f9e030733f853b32bf9bf1cdfb
Blitar Tourism 1.0 SQL Injection
Posted Apr 13, 2021
Authored by sigeri94

Blitar Tourism version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass.

tags | exploit, remote, sql injection
MD5 | 03d4e059484374b7780a14a295e4a837
Chrome V8 JavaScript Engine Remote Code Execution
Posted Apr 13, 2021
Authored by Rajvardhan Agarwal | Site github.com

Chrome V8 Javascript Engine remote code execution zero day exploit. Google is expected to release an update to their browser on tuesday 04/14/2021 that will address this vulnerability.

tags | exploit, remote, overflow, javascript, code execution
MD5 | a76d90d5f2c12f9efc441081adf2aabe
Red Hat Security Advisory 2021-1173-01
Posted Apr 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1173-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include buffer overflow and out of bounds read vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-27364, CVE-2021-27365
MD5 | 29a39411f8522d68c66a87c24114b782
ExpressVPN VPN Router 1.0 Integer Overflow
Posted Apr 13, 2021
Authored by Jai Kumar Sharma

ExpressVPN VPN Router version 1.0 suffers from an integer overflow vulnerability.

tags | exploit, overflow
advisories | CVE-2020-29238
MD5 | c2b0de22fdf163131606730f4d69a979
Red Hat Security Advisory 2021-1168-01
Posted Apr 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1168-01 - Red Hat Advanced Cluster Management for Kubernetes 2.2.2 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console-with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include code execution, denial of service, integer overflow, and null pointer vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-0466, CVE-2020-14040, CVE-2020-27152, CVE-2020-28374, CVE-2020-28500, CVE-2020-28851, CVE-2020-28852, CVE-2020-29529, CVE-2021-21321, CVE-2021-21322, CVE-2021-23337, CVE-2021-23840, CVE-2021-23841, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365, CVE-2021-3121, CVE-2021-3347, CVE-2021-3449, CVE-2021-3450
MD5 | b9e0eefcc48c75875a38dd990028dd1a
Simple Student Information System 1.0 SQL Injection
Posted Apr 13, 2021
Authored by Galuh Muhammad Iman Akbar

Simple Student Information System version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass.

tags | exploit, remote, sql injection
MD5 | bfec25b7957828dbd5331e19f7c20a6f
Native Church Website 1.0 Shell Upload
Posted Apr 13, 2021
Authored by Richard Jones

Native Church Website version 1.0 suffers from a remote shell upload vulnerability.

tags | exploit, remote, shell
MD5 | dee64438c491f2610eabc5f7febbf30b
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