What’s Vulnerable › Vulnerabilities

CVE-2018-17977

• Severity: medium (CVSS 4.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-10-08 · updated 2026-06-17
• Weakness: CWE-400

Description

The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.

Affected products

• Linux kernel: 4.14.67

References

• http://www.securityfocus.com/bid/105539
• https://www.openwall.com/lists/oss-security/2018/10/05/5
• http://www.securityfocus.com/bid/105539
• https://www.openwall.com/lists/oss-security/2018/10/05/5

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