In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink…
Priority LOW 32CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Partial Red Hat: 13 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.
Why it matters now
EPSS 0.00483 41st percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 13 fixed, 3 without a fix
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 4 advisories
- RHSA-2021:2725 Released 2021-07-21 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
- Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.36.2.el7, kernel-tools-libs-devel-3.10.0-1160.36.2.el7
- Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.36.2.el7, kernel-3.10.0-1160.36.2.el7, kernel-abi-whitelists-3.10.0-1160.36.2.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.36.2.el7
- RHSA-2021:2726 Released 2021-07-21 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-devel-3.10.0-1160.36.2.rt56.1179.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-3.10.0-1160.36.2.rt56.1179.el7, kernel-rt-debug-devel-3.10.0-1160.36.2.rt56.1179.el7 +7
- RHSA-2020:4609 Released 2020-11-04 · Red Hat rating Moderatekernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-240.rt7.54.el8, kernel-rt-core-4.18.0-240.rt7.54.el8, kernel-rt-debug-4.18.0-240.rt7.54.el8 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-240.rt7.54.el8, kernel-rt-core-4.18.0-240.rt7.54.el8, kernel-rt-debug-4.18.0-240.rt7.54.el8 +9
Show 1 more Red Hat advisories
- RHSA-2020:4431 Released 2020-11-04 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-240.el8
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-240.el8, kernel-4.18.0-240.el8, kernel-abi-whitelists-4.18.0-240.el8 +19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:4431 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:4431 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux Real Time (v. 8) | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:2725 |
| Red Hat Enterprise Linux for Real Time (v. 7) | Fixed | RHSA-2021:2726 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2021:2726 |
Not affected: 1 product
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2020-11668
- 2026-10-03 Alias added: GHSA-h6c2-xxv4-2462
References
Patch 2
Advisory 6
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-2020-11668 · CVE Program
- CVE-2020-11668 · NVD
- FIRST EPSS
- GHSA-h6c2-xxv4-2462 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-11668 · 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