What’s Vulnerable › Vulnerabilities

CVE-2023-31284

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-04 · updated 2026-06-17
• Weakness: CWE-787

Description

illumos illumos-gate before 676abcb has a stack buffer overflow in /dev/net, leading to privilege escalation via a stat on a long file name in /dev/net.

Affected products

• illumos-gate: before 2023-04-29 — fixed in 2023-04-29

How to fix

Upgrade to a fixed version: illumos-gate 2023-04-29. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2023/09/13/4
• http://www.openwall.com/lists/oss-security/2023/09/13/5
• http://www.openwall.com/lists/oss-security/2023/09/14/4
• https://github.com/illumos/illumos-gate/tree/16b76d3cb933ff92018a2a75594449010192eacb
• https://illumos.topicbox.com/groups/developer/T13ef186a53edeb5c-M821cc18b5884e04e16daa8fd/cve-2023-31284-buffer-overflow-in-dev-net
• http://www.openwall.com/lists/oss-security/2023/09/13/4
• http://www.openwall.com/lists/oss-security/2023/09/13/5
• http://www.openwall.com/lists/oss-security/2023/09/14/4
• https://github.com/illumos/illumos-gate/tree/16b76d3cb933ff92018a2a75594449010192eacb
• https://illumos.topicbox.com/groups/developer/T13ef186a53edeb5c-M821cc18b5884e04e16daa8fd/cve-2023-31284-buffer-overflow-in-dev-net

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