EulerOS 2.0 SP11 : kernel (EulerOS-SA-2023-1759)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In TBD of TBD, there is a possible way to corrupt kernel memory due to a use after free. This could lead to local escalation of privilege with n...

Measuring the withdrawal delay in block production time won't work properly on chains where the production time is not 12 seconds

Lines of code Vulnerability details Proof of Concept For withdrawals other than beaconChainETH, the variables withdrawalDelayBlocks and MAXWITHDRAWALDELAYBLOCKS will be used to enforce a delay for withdrawals in StrategyManager.sol. Currently MAXWITHDRAWALDELAYBLOCKS is set to 50400. uint256 publ...

Ubuntu 20.04 LTS : Linux kernel (BlueField) vulnerabilities (USN-6020-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6020-1 advisory. It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use...

CVE-2023-28368

TP-Link L2 switch T2600G-28SQ firmware versions prior to 'T2600G-28SQUNV11.0.6 Build 20230227' uses vulnerable SSH host keys. A fake device may be prepared to spoof the affected device with the vulnerable host key.If the administrator may be tricked to login to the fake device, the credential...

Design/Logic Flaw

TP-Link L2 switch T2600G-28SQ firmware versions prior to 'T2600G-28SQUNV11.0.6 Build 20230227' uses vulnerable SSH host keys. A fake device may be prepared to spoof the affected device with the vulnerable host key.If the administrator may be tricked to login to the fake device, the credential...

CVE-2023-28368

TP-Link L2 switch T2600G-28SQ firmware versions prior to 'T2600G-28SQUNV11.0.6 Build 20230227' uses vulnerable SSH host keys. A fake device may be prepared to spoof the affected device with the vulnerable host key.If the administrator may be tricked to login to the fake device, the credential...

CVE-2023-28368

The CVE concerns TP-Link L2 switch T2600G-28SQ. Affected firmware versions prior to T2600G-28SQ(UN)_V1_1.0.6 Build 20230227 use vulnerable SSH host keys, enabling a fake device to spoof the legitimate unit. If an administrator is tricked into logging into the impersonator, credential information ...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-5985-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5985-1 advisory. It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use...

Upgraded Q -> 2 from #215 [1679863603573]

Judge has assessed an item in Issue 215 as 2 risk. The relevant finding follows: L1 + L2 --- The text was updated successfully, but these errors were encountered: All reactions...

[bootloader] A bytecode hash without the bytecode (preimage) can be marked as known, breaking the prover

Lines of code Vulnerability details This is a report of a finding in bootloader.yul. While the file is out of scope of the contest, the sponsor stated that they would still accept findings in the file and would judge them separately from the contest. Impact A bytecode hash for which the bytecode...

Attacker could potentially burn the token balance of totalSupply and L2EthContract

Lines of code Vulnerability details Impact Attacker potentially can burn all L2EthContract and totalSupply tokens Proof of Concept function withdrawaddress l1Receiver external payable override uint256 amount = msg.value; // Silent burning of the ether unchecked balanceaddressthis -= amount;...

Sending L2 ---> L1 message without paying gas for published data due to uint256 overflow

Lines of code Vulnerability details Impact Due to this bug, a user can send arbitrarily long messages greater than a certain length from L2 to L1 without paying for the gas that is required for publishing data on L1. Proof of Concept Below is a PoC contract called "Test" that illustrates the bug...

Possible loss of funds when withdrawing from L2 to L1

Lines of code Vulnerability details Impact Context To initiate a withdrawal from L2 to L1, a user can call L2EthToken.withdraw method, then funds will be available to calim on L1 via finalizeEthWithdrawal method of MailboxFacet. function withdrawaddress l1Receiver external payable override The...

No check for active sequencer

Lines of code Vulnerability details Impact The protocol will operate at the previous stale rates. Proof of Concept Chainlink recommends that all Optimistic L2 oracles consult the Sequencer Uptime Feed to ensure that the sequencer is live before trusting the data returned by the oracle, even if...

K11546763: Linux kernel vulnerability CVE-2021-3653

Security Advisory Description A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this...

K23641249: KVM hypervisor vulnerability CVE-2020-2732

Security Advisory Description A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessibl...

K80212034: Linux kernel vulnerability CVE-2021-3656

Security Advisory Description A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this...

SUSE CVE-2014-0222

Integer overflow in the qcowopen function in block/qcow.c in QEMU before 1.7.2 allows remote attackers to cause a denial of service crash via a large L2 table in a QCOW version 1 image...

SUSE CVE-2015-3221

OpenStack Neutron before 2014.2.4 juno and 2015.1.x before 2015.1.1 kilo, when using the IPTables firewall driver, allows remote authenticated users to cause a denial of service L2 agent crash by adding an address pair that is rejected by the ipset tool...

SUSE CVE-2021-26347

Failure to validate the integer operand in ASP AMD Secure Processor bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service...