The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not…
Priority LOW 23Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Partial Red Hat: 4 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation.
Why it matters now
EPSS 0.00485 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 4 fixed, 1 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
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 2.6.37.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:*:*:*:*:*:*:* | 2.6.37 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:rc1:*:*:*:*:*:* | 2.6.37 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:rc2:*:*:*:*:*:* | 2.6.37 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:rc3:*:*:*:*:*:* | 2.6.37 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:rc4:*:*:*:*:*:* | 2.6.37 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37:rc5:*:*:*:*:*:* | 2.6.37 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37.1:*:*:*:*:*:*:* | 2.6.37.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37.2:*:*:*:*:*:*:* | 2.6.37.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.37.3:*:*:*:*:*:*:* | 2.6.37.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.37.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:*:*:*:*:*:*:* Versions 2.6.37 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc1:*:*:*:*:*:* Versions 2.6.37 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc2:*:*:*:*:*:* Versions 2.6.37 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc3:*:*:*:*:*:* Versions 2.6.37 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc4:*:*:*:*:*:* Versions 2.6.37 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc5:*:*:*:*:*:* Versions 2.6.37 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37.1:*:*:*:*:*:*:* Versions 2.6.37.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37.2:*:*:*:*:*:*:* Versions 2.6.37.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.37.3:*:*:*:*:*:*:* Versions 2.6.37.3 Vulnerable ·Linux
Remediation
Red Hat 1 advisory
- RHSA-2011:0542 Released 2011-05-19 · Red Hat rating ImportantRed Hat Enterprise Linux 6.1 kernel security, bug fix and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.0.15.el6, kernel-bootwrapper-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6 +8
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 1 | Affected | No fix yet |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0542 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1023
- 2026-10-03 Alias added: GHSA-v9vf-hr4f-r4g4
References
Other 4
- [oss-security] 20110303 CVE-2011-1023 kernel: rds: prevent BUG_ON triggering on congestion map updates
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6094628bfd94323fc1cea05ec2c6affd98c18f7f
- https://bugzilla.redhat.com/show_bug.cgi?id=680345
More Linux Kernel vulnerabilities
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- 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-2011-1023 · CVE Program
- CVE-2011-1023 · NVD
- FIRST EPSS
- GHSA-v9vf-hr4f-r4g4 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1023 · Red Hat security data · CC BY 4.0
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