net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain…
Priority LOW 10CWE-399Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory via a crafted application.
Why it matters now
EPSS 0.00361 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.8.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* | 3.8.0 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* | 3.8.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* | 3.8.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.8.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* Versions 3.8.0 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* Versions 3.8.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* Versions 3.8.2 Vulnerable ·Linux
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
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-2013-2636
- 2026-10-03 Alias added: GHSA-7q4r-5f4x-c486
References
Other 4
- https://bugzilla.redhat.com/show_bug.cgi?id=923652
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c085c49920b2f900ba716b4ca1c1a55ece9872cc
- [oss-security] 20130320 Re: Linux kernel: net - three info leaks in rtnl
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
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-2013-2636 · CVE Program
- CVE-2013-2636 · NVD
- FIRST EPSS
- GHSA-7q4r-5f4x-c486 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-2636 · 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