7
CVSSv3

CVE-2017-7477

Published: 25/04/2017 Updated: 21/06/2023
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7 | Impact Score: 5.9 | Exploitability Score: 1
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

Heap-based buffer overflow in drivers/net/macsec.c in the MACsec module in the Linux kernel up to and including 4.10.12 allows malicious users 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.

Vulnerability Trend

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linux linux kernel

Vendor Advisories

Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Topic An update for kernel is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) b ...
Synopsis Important: kernel-rt security and bug fix update Type/Severity Security Advisory: Important Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (C ...
Several security issues were fixed in the kernel ...
The system could be made to crash or run programs as an administrator ...
The system could be made to crash or run programs as an administrator ...
A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff) The heap overflow occurred if 'MAX_SKB_FRAGS + 1' parameter and 'NETIF_F_FRAGLIST' feature are both used together A remote user or process could use this flaw to potentia ...