CVE-2017-7477 Memory corruption in Linux kernel

What is CVE-2017-7477?

CVE-2017-7477 is a high-severity memory corruption vulnerability in Linux kernel, published on 25 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Heap-based buffer overflow in drivers/net/macsec.c in the MACsec module in the Linux kernel through 4.10.12 allows attackers to cause a denial of service or possibly have unspecified other impact by leveraging the use of a MAX_SKB_FRAGS+1 size in conjunction with the NETIF_F_FRAGLIST feature, leading to an error in the skb_to_sgvec function.

Weakness: CWE-119

Which versions are affected by CVE-2017-7477?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-7477?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-7477 being exploited?

There is no known exploitation of CVE-2017-7477 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-7477, GHSA-rj7x-xw78-6fjw, UBUNTU-CVE-2017-7477, USN-3292-2.