SUSE CVE-2023-5215

A flaw was found in libnbd. A server can reply with a block size larger than 2^63 the NBD spec states the size is a 64-bit unsigned value. This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbdgetsize function...

DEBIAN-CVE-2023-5215

A flaw was found in libnbd. A server can reply with a block size larger than 2^63 the NBD spec states the size is a 64-bit unsigned value. This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbdgetsize function...

UBUNTU-CVE-2023-5215

A flaw was found in libnbd. A server can reply with a block size larger than 2^63 the NBD spec states the size is a 64-bit unsigned value. This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbdgetsize function...

PT-2023-9291 · Libnbd +5 · Libnbd +5

Name of the Vulnerable Software and Affected Versions: libnbd affected versions not specified Description: A flaw was found in libnbd where a server can reply with a block size larger than 2^63, which is a 64-bit unsigned value according to the NBD spec. This issue could lead to an application...

libnbd Security Vulnerabilities

libnbd is a library for editing NBD Network Block Device clients. A security vulnerability exists in libnbd that stems from an inability to properly handle the return value of the nbdgetsize function, which could lead to application crashes or other unexpected behavior on the client...

K61547155: QEMU vulnerabilities CVE-2020-10761, CVE-2020-13361, CVE-2020-13362, CVE-2020-13659, and CVE-2020-13754

Security Advisory Description CVE-2020-10761 An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remot...

SUSE CVE-2005-3534

Buffer overflow in the Network Block Device nbd server 2.7.5 and earlier, and 2.8.0 through 2.8.2, allows remote attackers to execute arbitrary code via a large request, which is written past the end of the buffer because nbd does not account for memory taken by the reply header...

SUSE CVE-2011-0530

Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block Device nbd before 2.9.20 might allow remote attackers to execute arbitrary code via a long request. NOTE: this issue exists because of a CVE-2005-3534 regression...

SUSE CVE-2011-1925

nbd-server.c in Network Block Device nbd-server 2.9.21 allows remote attackers to cause a denial of service NULL pointer dereference and crash by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export...

SUSE CVE-2015-0847

nbd-server.c in Network Block Device nbd-server before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service deadlock via unspecified vectors...

SUSE CVE-2017-2630

A stack buffer overflow flaw was found in the Quick Emulator QEMU before 2.9 built with the Network Block Device NBD client support. The flaw could occur while processing server's response to a 'NBDOPTLIST' request. A malicious NBD server could use this issue to crash a remote NBD client resultin...

SUSE CVE-2017-9524

The qemu-nbd server in QEMU aka Quick Emulator, when built with the Network Block Device NBD Server support, allows remote attackers to cause a denial of service segmentation fault and server crash by leveraging failure to ensure that all initialization occurs before talking to a client in the...

SUSE CVE-2017-15119

The Network Block Device NBD server in Quick Emulator QEMU before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from...

SUSE CVE-2019-16089

An issue was discovered in the Linux kernel through 5.2.13. nbdgenlstatus in drivers/block/nbd.c does not check the nlaneststartnoflag return value...

SUSE CVE-2020-10761

An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the...

SUSE CVE-2022-26495

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBDOPTINFO,...

SUSE CVE-2022-26496

In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBDOPTINFO or NBDOPTGO message with an large value as the length of the name...

PT-2025-40220

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the network block device nbd module related to incomplete validation of arguments passed through ioctl calls. Specifically, the issue arises from...

kernel: nbd: fix io hung while disconnecting device

In the Linux kernel, the following vulnerability has been resolved: nbd: fix io hung while disconnecting device In our tests, "qemu-nbd" triggers a io hung: INFO: task qemu-nbd:11445 blocked for more than 368 seconds. Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca 884 "echo 0...

PT-2022-35744 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.19.262 Description: The issue is related to a hung condition when a signal interrupts the nbd start device ioctl function. The actual impact and potential for attack have not been fully determined...