CVE-2020-25741

A NULL pointer dereference flaw was found in the Floppy disk emulator of QEMU. This issue occurs while transferring data via the fdctrlreaddata and fdctrlwritedata routines if the current drive has a null block pointer. This flaw allows a guest user to crash the QEMU process on the host, resultin...

An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it aka CID-2e90ca68b0d2.

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kernel: integer overflow and OOB read in drivers/block/floppy.c

A vulnerability was found in the Linux kernel’s floppy disk driver implementation. A local attacker with access to the floppy device could call setgeometry in drivers/block/floppy.c, which does not validate the sect and head fields, causing an integer overflow and out-of-bounds read. This flaw ma...

Debian DLA-2242-1 : linux-4.9 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-2182 Hanjun Guo and Lei Li reported a race condition in the arm64 virtual memory management code, which could lead to an information disclosur...

Internet Bug Bounty: CVE-2020-9383 Floppy OOB read

A vulnerability was found in Linux Kernel up to 5.5.6 Operating System and classified as critical. Affected by this issue is the function setfdc of the file drivers/block/floppy.c. The manipulation with an unknown input leads to a memory corruption vulnerability Out-of-Bounds. Using CWE to declar...

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1)

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-11494: An issue was discovered in slcbump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized canframe data, potentially containing...

USN-4345-1: Linux kernel vulnerabilities | Cloud Foundry

Severity High Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Description Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial...

kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c

An out-of-bounds OOB memory access flaw was found in the floppy driver module in the Linux kernel. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability i...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5670)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5670 advisory. - brcmfmac: add subtype check for event handling in data path John Donnelly Orabug: 30776354 CVE-2019-9503 - mwifiex: pcie: Fix memory leak in...

USN-4342-1: Linux kernel vulnerabilities

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2020-11884 It was discovered that t...

USN-4342-1 linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2020-11884 It was discovered that t...

USN-4346-1 linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service system crash. CVE-2019-16233 It was discovered that the Intel Wi-Fi driver in t...

USN-4346-1: Linux kernel vulnerabilities

It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service system crash. CVE-2019-16233 It was discovered that the Intel Wi-Fi driver in t...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4345-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4345-1 advisory. Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondar...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4346-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4346-1 advisory. It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A loc...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4344-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4344-1 advisory. It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly u...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4342-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4342-1 advisory. Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address...

USN-4345-1: Linux kernel vulnerabilities

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2020-11884 It was discovered that t...

USN-4344-1: Linux kernel vulnerabilities

It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service system crash. CVE-2019-16234 It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not...

USN-4344-1 linux-gke-5.0, linux-oem-osp11 vulnerabilities

It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service system crash. CVE-2019-16234 It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not...