CVE-2020-27674

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique...

CVE-2020-27674

CVE-2020-27674 is a Xen hypervisor local privilege escalation affecting Xen 4.14.x and earlier where x86 PV guests can gain guest OS privileges by modifying kernel memory contents due to mishandled invalidation of TLB entries in an INVLPG-like attack. The issue enables a local attacker to escalat...

glib2, ibus security update

CentOS Errata and Security Advisory CESA-2020:3978 An update for glib2 and ibus is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

x86 PV guest INVLPG-like flushes may leave stale TLB entries

ISSUE DESCRIPTION x86 PV guest kernels may use hypercalls with INVLPG-like behavior to invalidate TLB entries even after changes to non-leaf page tables. Such changes to non-leaf page tables will, however, also render stale possible TLB entries created by Xen's internal use of linear page tables ...

Information Disclosure

junit is vulnerable to Information Disclosure. The vulnerability exists through the behaviour of TemporaryFolder on UNIX-like systems, where the system's temporary directory is shared between all users on that system by default...

CVE-2020-15250 Information disclosure in JUnit4

In JUnit4 from version 4.7 and before 4.13.1, the test rule TemporaryFolder contains a local information disclosure vulnerability. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this...

Malware Families Turn to Legit Pastebin-Like Service

Cybercriminals are increasingly turning to a legitimate, Pastebin-like web service for downloading malware — such as AgentTesla and LimeRAT — in spear-phishing attacks. Pastebin, a code-hosting service that enables users to share plain text through public posts called “pastes,” currently has 17...

Fedora: Security Advisory for dovecot (FEDORA-2020-b8ebc4201e)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH 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-or-later This program is free software; you can...

Important: Red Hat Security Advisory: dovecot security update

An update for dovecot is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

Hardcodes - Find Hardcoded Strings From Source Code

hardcodes is a utility for searching strings hardcoded by developers in programs. It uses a modular tokenizer that can handle comments, any number of backslashes & nearly any syntax you throw at it. Yes, it is designed to process any syntax and following languages are officially supported: ada,...

Fedora: Security Advisory for dovecot (FEDORA-2020-cd8b8f887b)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH 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-or-later This program is free software; you can...

Code Injection in ionicabizau/git-stats

Overview git-stats is a js package for local git statistics including GitHub-like contributions calendars. Affected versions of this package are vulnerable to Command Injection. It is possible to inject arbitrary commands by using a semicolon char in any of the options.start or options.end values...

Lazarus Group Brings APT Tactics to Ransomware

Targeted ransomware attacks are on the rise, usually perpetrated by financially motivated threat gangs, which often work in concert together. However, researchers said that a recent strain of ransomware, called VHD, can be linked to an unusual source: The Lazarus Group APT. According to researche...

spring-data-jpa: Additional information exposure with Spring Data JPA derived queries

This affects Spring Data JPA in versions up to and including 2.1.5, 2.0.13 and 1.11.19. Derived queries using any of the predicates ‘startingWith’, ‘endingWith’ or ‘containing’ could return more results than anticipated when a maliciously crafted query parameter value is supplied. Also, LIKE...

[SECURITY] Fedora 31 Update: roundcubemail-1.4.7-1.fc31

RoundCube Webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking. RoundCube Webmail is written in...

RHEL 8 : dovecot (RHSA-2020:2901)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2901 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and...

Important: Red Hat Security Advisory: dovecot security update

An update for dovecot is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

Mattermost Server Resource Management Error Vulnerability (CNVD-2020-35361)

Mattermost Server is the United States Mattermost company's set of open source messaging platform. A resource management error vulnerability exists in Mattermost Server versions prior to 5.15.0, which can be exploited by an attacker to cause a denial of service CPU consumption with the help of...

Mutt Information Disclosure Vulnerability

Mutt is a text-based mail client for Unix-like systems by Michael Elkins Software Developers. A security vulnerability exists in Mutt versions prior to 1.14.3. The vulnerability can be exploited by an attacker to conduct a man-in-the-middle attack using the PREAUTH response...

Friday Squid Blogging: Human Cells with Squid-Like Transparency

I think we need more human organs with squid-like features. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read my blog posting guidelines here...