Buffer overflow in Linux Kernel
CVE-2017-7477
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.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (31.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- N/a Linux Kernel — versions Linux kernel
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM, Patch)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Patch)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2017-7477?
- CVE-2017-7477 is a high-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.0/10. Published 2017-04-25.
- How severe is CVE-2017-7477?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2017-7477 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.