CVE-2023-5215
CVSS 3.1 Score 6.5 of 10 (medium)
Details
Published Sep 28, 2023
Updated: Apr 30, 2024
CWE ID 252
CWE ID 241
Summary
CVE-2023-5215 is a vulnerability affecting the libnbd library. The issue arises when a server responds with a block size exceeding the maximum allowed value of 2^63. This anomalous response could cause applications using NBD clients to crash or exhibit unintended behavior if they fail to properly handle the nbd_get_size() function return value. The NBD specification specifies the size as a 64-bit unsigned value, and servers should adhere to this restriction to prevent such issues.
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Affected Products
- Redhat Libnbd
- Red Hat Enterprise Linux
Affected Vendors
- Red Hat