What’s Vulnerable › Vulnerabilities

CVE-2018-25015

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-07 · updated 2026-06-17
• Weakness: CWE-416

Description

An issue was discovered in the Linux kernel before 4.14.16. There is a use-after-free in net/sctp/socket.c for a held lock after a peel off, aka CID-a0ff660058b8.

Affected products

• Linux kernel: before 4.14.16 — fixed in 4.14.16
• NetApp H300E Firmware: all versions
• NetApp H300S Firmware: all versions
• NetApp H410C Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500E Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700E Firmware: all versions
• NetApp H700S Firmware: all versions

How to fix

Upgrade to a fixed version: Linux kernel 4.14.16. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.16
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0ff660058b88d12625a783ce9e5c1371c87951f
• https://security.netapp.com/advisory/ntap-20210720-0002/
• https://sites.google.com/view/syzscope/warning-held-lock-freed
• https://syzkaller.appspot.com/bug?id=a8d38d1b68ffc744c53bd9b9fc1dbd6c86b1afe2
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.16
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0ff660058b88d12625a783ce9e5c1371c87951f
• https://security.netapp.com/advisory/ntap-20210720-0002/
• https://sites.google.com/view/syzscope/warning-held-lock-freed
• https://syzkaller.appspot.com/bug?id=a8d38d1b68ffc744c53bd9b9fc1dbd6c86b1afe2

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