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CVE-2022-26495

Description

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.

Risk Information

Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.223

Associated Vulnerability

VulnerabilityOS Platform
Network Block Device protocol (USN-5323-1) nbd-server_3.20-1ubuntu0.1_amd64.debLinux
Network Block Device protocol (USN-5323-1) nbd-server_3.21-1ubuntu0.1_amd64.debLinux
Network Block Device protocol (USN-5323-1) nbd-server_3.16.2-1ubuntu0.2_i386.debLinux
Network Block Device protocol (USN-5323-1) nbd-server_3.16.2-1ubuntu0.2_amd64.debLinux
nbd security update(DSA-5100-1) nbd-server_3.21-1+deb11u1_i386.debLinux
nbd security update(DSA-5100-1) nbd-server_3.21-1+deb11u1_amd64.debLinux
nbd security update(DSA-5100-1) nbd-server_3.19-3+deb10u1_i386.debLinux
nbd security update(DSA-5100-1) nbd-server_3.19-3+deb10u1_amd64.debLinux
nbd security update(DSA-5100-1) nbd-client_3.21-1+deb11u1_i386.debLinux
nbd security update(DSA-5100-1) nbd-client_3.21-1+deb11u1_amd64.debLinux
nbd security update(DSA-5100-1) nbd-client_3.19-3+deb10u1_i386.debLinux
nbd security update(DSA-5100-1) nbd-client_3.19-3+deb10u1_amd64.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234