A week in security (May 3 – 9)

Last week on Malwarebytes Labs, we discussed how Spectre attacks have come back from the dead; why Facebook banned Instragram ads by Signal; we highlighted the differences between the most popular VPN protocols; pointed out that Google is about to start automatically enrolling users in two-step...

PT-2021-3105 · Squid +8 · Squid +9

Name of the Vulnerable Software and Affected Versions: Squid versions prior to 4.15 Squid versions 5.x prior to 5.0.6 Description: The issue exists due to insufficient validation of user-input data when delivering responses to HTTP range requests. This can be exploited by a remote attacker to cau...

GHSA-375M-5FVV-XQ23 VVE-2021-0002: Incorrect `returndatasize` when using simple forwarder proxies deployed prior to EIP-1167 adoption

Background @tjayrush reported a data handling issue with certain Web3 libraries using Vyper-deploy forwarder proxy contracts using our Vyper's built-in createforwarderto function prior to our change to support EIP-1167 style forwarder proxies. Impact If you are an end user of a forwarder-style...

DEBIAN-CVE-2021-20288

An authentication flaw was found in ceph in versions before 14.2.20. When the monitor handles CEPHXGETAUTHSESSIONKEY requests, it doesn't sanitize otherkeys, allowing key reuse. An attacker who can request a globalid can exploit the ability of any user to request a globalid previously associated...

DEBIAN-CVE-2015-20001

In the standard library in Rust before 1.2.0, BinaryHeap is not panic-safe. The binary heap is left in an inconsistent state when the comparison of generic elements inside siftup or siftdownrange panics. This bug leads to a drop of zeroed memory as an arbitrary type, which can result in a memory...

Friday Squid Blogging: 500-Million-Year-Old Cephalopod

The oldest known cephalopod -- the ancestor of all modern octopuses, squid, cuttlefish and nautiluses -- is 500 million years old. 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...

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation aka CID-dbcc7d57bffc.

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git tar.git 安全漏洞

GNU Tar is a set of tools from the GNU community for creating files in tar format. A security vulnerability exists in tar 1.33 and earlier versions, which can be exploited by an attacker to submit a crafted input file to tar, resulting in uncontrolled memory consumption...

Tor Project Inc Tor 资源管理错误漏洞

Tor Project Inc Tor is an open source application from Tor Project Inc. It provides a browser with hidden functionality. A security vulnerability exists in Tor, which can be exploited by an attacker to trigger a denial of service via a reload of Tor's old cache descriptor file...

bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility possible

A flaw was found in bouncycastle. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password allowing incorrect passwords to indicate they were matching with previously hashed ones that were different. The highest threat from this vulnerability is to data...

PT-2021-6462

Name of the Vulnerable Software and Affected Versions kube-apiserver affected versions not specified Description A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a...

jenkins: Improper handling of REST API XML deserialization errors

A flaw was found in jenkins. An attacker with permission to create or configure various objects to inject crafted content into Old Data Monitor can cause the instantiation of potentially unsafe objects once discarded by an administrator. The highest threat from this vulnerability is to data...

Perth Dropbear Security Vulnerability

Perth Dropbear is a lightweight SSH server/client software from the University of Perth, Australia that is primarily used in embedded devices. A security vulnerability exists in Dropbear before 2020.79 that stems from incorrectly processed filenames, or empty filenames...

CVE-2021-21045

Acrobat Reader DC versions versions 2020.013.20074 and earlier, 2020.001.30018 and earlier and 2017.011.30188 and earlier are affected by an improper access control vulnerability. An unauthenticated attacker could leverage this vulnerability to elevate privileges in the context of the current use...

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID which had been invalid after a logout once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an...

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID which had been invalid after a logout once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an...

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID which had been invalid after a logout once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an...

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID which had been invalid after a logout once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an...

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID which had been invalid after a logout once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an...

Octobercms Code Issues Vulnerabilities

Octobercms is a Php based Cms website builder from Octobercms, Inc. A security vulnerability exists in Octobercms through build 471, which stems from the fact that it reactivates old session IDs when a new login occurs...