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TI-2020-17210 Aliases CVE-2020-28374GHSA-xp87-7m9f-4cr9

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient…

Priority MEDIUM 45CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 34 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

Why it matters now

EPSS 0.06642 93rd percentileScored 2026-11-07
Fix Partial Red Hat: 15 advisoriesRed Hat: 34 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 5.10.7VulnerableLinux
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.10.7 Vulnerable ·Linux
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 15 advisories

  • RHSA-2021:2732 Released 2021-07-20 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.90.2.el7, kernel-abi-whitelists-3.10.0-693.90.2.el7, kernel-debug-3.10.0-693.90.2.el7 +7
    • Red Hat Enterprise Linux Server E4S (v. 7.4) kernel-3.10.0-693.90.2.el7, kernel-abi-whitelists-3.10.0-693.90.2.el7, kernel-bootwrapper-3.10.0-693.90.2.el7 +8
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.90.2.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debug-devel-3.10.0-693.90.2.el7, kernel-tools-libs-devel-3.10.0-693.90.2.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.90.2.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.4) kernel-3.10.0-693.90.2.el7, kernel-abi-whitelists-3.10.0-693.90.2.el7, kernel-debug-3.10.0-693.90.2.el7 +7
  • RHSA-2021:2185 Released 2021-06-02 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.2) kernel-tools-libs-devel-4.18.0-193.56.1.el8_2
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) bpftool-4.18.0-193.56.1.el8_2, kernel-4.18.0-193.56.1.el8_2, kernel-abi-whitelists-4.18.0-193.56.1.el8_2 +19
  • RHSA-2021:2190 Released 2021-06-01 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v. 8.2) kernel-rt-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-core-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-debug-4.18.0-193.56.1.rt13.106.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2) kernel-rt-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-core-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-debug-4.18.0-193.56.1.rt13.106.el8_2 +9
Show 12 more Red Hat advisories
  • RHSA-2021:2167 Released 2021-06-01 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) kpatch-patch-4_18_0-193_13_2-1-9.el8_2, kpatch-patch-4_18_0-193_14_3-1-9.el8_2, kpatch-patch-4_18_0-193_19_1-1-9.el8_2 +9
  • RHSA-2021:2106 Released 2021-05-25 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.1) kernel-tools-libs-devel-4.18.0-147.48.1.el8_1
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) bpftool-4.18.0-147.48.1.el8_1, kernel-4.18.0-147.48.1.el8_1, kernel-abi-whitelists-4.18.0-147.48.1.el8_1 +19
  • RHSA-2021:2099 Released 2021-05-25 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) kpatch-patch-4_18_0-147_20_1-1-11.el8_1, kpatch-patch-4_18_0-147_24_2-1-9.el8_1, kpatch-patch-4_18_0-147_27_1-1-9.el8_1 +5
  • RHSA-2021:1531 Released 2021-05-11 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) bpftool-3.10.0-1062.49.1.el7, kernel-3.10.0-1062.49.1.el7, kernel-abi-whitelists-3.10.0-1062.49.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.49.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.7) bpftool-3.10.0-1062.49.1.el7, kernel-3.10.0-1062.49.1.el7, kernel-abi-whitelists-3.10.0-1062.49.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debug-devel-3.10.0-1062.49.1.el7, kernel-tools-libs-devel-3.10.0-1062.49.1.el7
  • RHSA-2021:1532 Released 2021-05-11 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server EUS (v. 7.7) kpatch-patch-3_10_0-1062_26_1-1-3.el7, kpatch-patch-3_10_0-1062_30_1-1-3.el7, kpatch-patch-3_10_0-1062_31_2-1-3.el7 +8
  • RHSA-2021:1376 Released 2021-04-27 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) bpftool-3.10.0-957.72.1.el7, kernel-3.10.0-957.72.1.el7, kernel-abi-whitelists-3.10.0-957.72.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.72.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.6) bpftool-3.10.0-957.72.1.el7, kernel-3.10.0-957.72.1.el7, kernel-abi-whitelists-3.10.0-957.72.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debug-devel-3.10.0-957.72.1.el7, kernel-tools-libs-devel-3.10.0-957.72.1.el7
    • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-devel-3.10.0-957.72.1.el7, perf-3.10.0-957.72.1.el7, python-perf-3.10.0-957.72.1.el7
  • RHSA-2021:1377 Released 2021-04-27 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server EUS (v. 7.6) kpatch-patch-3_10_0-957_54_1-1-3.el7, kpatch-patch-3_10_0-957_56_1-1-3.el7, kpatch-patch-3_10_0-957_58_2-1-3.el7 +6
  • RHSA-2021:1093 Released 2021-04-06 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-240.22.1.el8_3
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-240.22.1.el8_3, kernel-4.18.0-240.22.1.el8_3, kernel-abi-whitelists-4.18.0-240.22.1.el8_3 +19
  • RHSA-2021:1081 Released 2021-04-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-core-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-debug-4.18.0-240.22.1.rt7.77.el8_3 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-core-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-debug-4.18.0-240.22.1.rt7.77.el8_3 +9
  • RHSA-2021:0856 Released 2021-03-16 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.21.1.el7, kernel-3.10.0-1160.21.1.el7, kernel-abi-whitelists-3.10.0-1160.21.1.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.21.1.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.21.1.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.21.1.el7, kernel-3.10.0-1160.21.1.el7, kernel-abi-whitelists-3.10.0-1160.21.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.21.1.el7, kernel-tools-libs-devel-3.10.0-1160.21.1.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.21.1.el7, kernel-3.10.0-1160.21.1.el7, kernel-abi-whitelists-3.10.0-1160.21.1.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.21.1.el7
  • RHSA-2021:0857 Released 2021-03-16 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.21.1.rt56.1158.el7, kernel-rt-debug-3.10.0-1160.21.1.rt56.1158.el7, kernel-rt-debug-devel-3.10.0-1160.21.1.rt56.1158.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.21.1.rt56.1158.el7, kernel-rt-debug-3.10.0-1160.21.1.rt56.1158.el7, kernel-rt-debug-devel-3.10.0-1160.21.1.rt56.1158.el7 +7
  • RHSA-2021:0862 Released 2021-03-16 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server (v. 7) kpatch-patch-3_10_0-1160-1-3.el7, kpatch-patch-3_10_0-1160_11_1-1-2.el7, kpatch-patch-3_10_0-1160_15_2-1-2.el7 +3

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise MRG 2AffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1093
Red Hat CodeReady Linux Builder EUS (v. 8.1)Fixed RHSA-2021:2106
Red Hat CodeReady Linux Builder EUS (v. 8.2)Fixed RHSA-2021:2185
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2021:1093
Red Hat Enterprise Linux BaseOS EUS (v. 8.1)Fixed RHSA-2021:2099, RHSA-2021:2106
Red Hat Enterprise Linux BaseOS EUS (v. 8.2)Fixed RHSA-2021:2167, RHSA-2021:2185
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2021:1376
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)Fixed RHSA-2021:1531
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2021:1376
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7)Fixed RHSA-2021:1531
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2021:1081
Red Hat Enterprise Linux Real Time EUS (v. 8.2)Fixed RHSA-2021:2190
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2021:1081
Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2)Fixed RHSA-2021:2190
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:0856, RHSA-2021:0862
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Server E4S (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2021:1376, RHSA-2021:1377
Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2021:1531, RHSA-2021:1532
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Server Optional E4S (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2021:1376
Red Hat Enterprise Linux Server Optional EUS (v. 7.7)Fixed RHSA-2021:1531
Red Hat Enterprise Linux Server Optional TUS (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Server TUS (v. 7.4)Fixed RHSA-2021:2732
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2021:0856
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2021:0857
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2021:0857
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUSFixed RHSA-2021:1376
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-28374
  2. 2026-10-03 Alias added: GHSA-xp87-7m9f-4cr9

References

Patch 3

Advisory 12

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences