The uart_get_count function in drivers/serial/serial_core.c in the Linux kernel before…
Priority LOW 11CWE-200Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
The uart_get_count function in drivers/serial/serial_core.c in the Linux kernel before 2.6.37-rc1 does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.
Why it matters now
EPSS 0.00387 33rd percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories
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-2011:0162 Released 2011-01-18 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-89.35.1.EL, kernel-2.6.9-89.35.1.EL.ia64, kernel-2.6.9-89.35.1.EL.ppc64iseries +14
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-89.35.1.EL, kernel-devel-2.6.9-89.35.1.EL, kernel-doc-2.6.9-89.35.1.EL +8
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-89.35.1.EL, kernel-2.6.9-89.35.1.EL.ia64, kernel-devel-2.6.9-89.35.1.EL +12
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-89.35.1.EL, kernel-2.6.9-89.35.1.EL.ia64, kernel-devel-2.6.9-89.35.1.EL +12
- RHSA-2011:0017 Released 2011-01-13 · Red Hat rating ImportantRed Hat Enterprise Linux 5.6 kernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-238.el5, kernel-2.6.18-238.el5.ia64, kernel-PAE-2.6.18-238.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-238.el5, kernel-PAE-2.6.18-238.el5, kernel-PAE-devel-2.6.18-238.el5 +8
- RHSA-2011:0007 Released 2011-01-11 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-71.14.1.el6, kernel-debug-2.6.32-71.14.1.el6, kernel-debug-devel-2.6.32-71.14.1.el6 +5
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-71.14.1.el6, kernel-debug-2.6.32-71.14.1.el6, kernel-debug-devel-2.6.32-71.14.1.el6 +5
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-71.14.1.el6, kernel-bootwrapper-2.6.32-71.14.1.el6, kernel-debug-2.6.32-71.14.1.el6 +8
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-71.14.1.el6, kernel-debug-2.6.32-71.14.1.el6, kernel-debug-devel-2.6.32-71.14.1.el6 +5
Show 1 more Red Hat advisories
- RHSA-2010:0958 Released 2010-12-08 · Red Hat rating Importantkernel-rt security and bug fix update
- MRG Realtime for RHEL 5 Server kernel-rt-2.6.33.7-rt29.47.el5rt, kernel-rt-debug-2.6.33.7-rt29.47.el5rt, kernel-rt-debug-devel-2.6.33.7-rt29.47.el5rt +7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| MRG Realtime for RHEL 5 Server | Fixed | RHSA-2010:0958 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2011:0017 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2011:0162 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2011:0017 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0007 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2011:0162 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2011:0162 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0007 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0007 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2011:0162 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0007 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4075
- 2026-10-03 Alias added: GHSA-2qfx-rcv3-25r2
References
Patch 5
- [oss-security] 20100925 CVE request: multiple kernel stack memory disclosures
- [linux-kernel] 20100915 [PATCH] drivers/serial/serial_core.c: prevent readinguninitialized stack memory
- [oss-security] 20101006 Re: CVE request: multiple kernel stack memory disclosures
- https://bugzilla.redhat.com/show_bug.cgi?id=648660
- [oss-security] 20101025 Re: CVE request: multiple kernel stack memory disclosures
Advisory 8
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-2010-4075 · CVE Program
- CVE-2010-4075 · NVD
- FIRST EPSS
- GHSA-2qfx-rcv3-25r2 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-4075 · 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