Memory corruption in Linux kernel
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Linux kernel | Linux kernel | — | No fix listed | CNA |
- Linux kernel Vendor— Affected Linux kernel Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2017:1616 Released 2017-06-28 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-514.26.1.rt56.442.el7, kernel-rt-debug-3.10.0-514.26.1.rt56.442.el7, kernel-rt-debug-devel-3.10.0-514.26.1.rt56.442.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-514.26.1.rt56.442.el7, kernel-rt-debug-3.10.0-514.26.1.rt56.442.el7, kernel-rt-debug-devel-3.10.0-514.26.1.rt56.442.el7 +7
- RHSA-2017:1615 Released 2017-06-28 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-514.26.1.el7, kernel-abi-whitelists-3.10.0-514.26.1.el7, kernel-debug-3.10.0-514.26.1.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.26.1.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-514.26.1.el7, kernel-abi-whitelists-3.10.0-514.26.1.el7, kernel-debug-3.10.0-514.26.1.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.26.1.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-514.26.1.el7, kernel-abi-whitelists-3.10.0-514.26.1.el7, kernel-bootwrapper-3.10.0-514.26.1.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-514.26.1.el7, kernel-tools-libs-devel-3.10.0-514.26.1.el7
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-514.26.1.el7, kernel-abi-whitelists-3.10.0-514.26.1.el7, kernel-debug-3.10.0-514.26.1.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-514.26.1.el7
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux Realtime (v. 7) | Fixed | RHSA-2017:1616 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2017:1616 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7477
- 2026-10-03 Alias added: GHSA-rj7x-xw78-6fjw
References
Patch 3
Advisory 2
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2017-7477 · CVE Program
- CVE-2017-7477 · NVD
- FIRST EPSS
- GHSA-rj7x-xw78-6fjw · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7477 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences