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CVE-2022-26495

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow.

Impact

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 NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Affected products

VendorProductAffected versions
Network Block Device ProjectNetwork Block Device
before 3.24
DebianDebian Linux
Versions 9.0, 10.0, 11.0
FedoraprojectFedora
Versions 34, 35, 36

Weakness classification

CWE-190

References