be2net: Fix buffer overflow in be_get_module_eeprom
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in be_get_module_eeprom be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case. Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only copy the bytes once.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.18 and later | 4.9.325, 4.14.290, 4.19.254, 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 3.18 and later Fixed in 4.9.325, 4.14.290, 4.19.254, 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.18 to before 4.9.325; 4.10 to before 4.14.290; 4.15 to before 4.19.254; 4.20 to before 5.4.208; 5.5 to before 5.10.134; 5.11 to before 5.15.58; 5.16 to before 5.18.15 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* | 5.19 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | 5.19 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | 5.19 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* | 5.19 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* | 5.19 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* | 5.19 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:* | 5.19 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.18 to before 4.9.325; 4.10 to before 4.14.290; 4.15 to before 4.19.254; 4.20 to before 5.4.208; 5.5 to before 5.10.134; 5.11 to before 5.15.58; 5.16 to before 5.18.15 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* Versions 5.19 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* Versions 5.19 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* Versions 5.19 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* Versions 5.19 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* Versions 5.19 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* Versions 5.19 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:* Versions 5.19 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.325, 4.14.290, 4.19.254, 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19
Red Hat 2 advisories
- RHSA-2026:1494 Released 2026-01-28 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.163.1.el9_0, kernel-debug-devel-matched-5.14.0-70.163.1.el9_0, kernel-devel-5.14.0-70.163.1.el9_0 +5
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.163.1.el9_0, kernel-5.14.0-70.163.1.el9_0, kernel-abi-stablelists-5.14.0-70.163.1.el9_0 +14
- RHSA-2026:1495 Released 2026-01-28 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +9
- Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2026:1494 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.0) | Fixed | RHSA-2026:1494 |
| Red Hat Enterprise Linux NFV E4S (v.9.0) | Fixed | RHSA-2026:1495 |
| Red Hat Enterprise Linux Real Time E4S (v.9.0) | Fixed | RHSA-2026:1495 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49581
- 2026-10-03 Alias added: GHSA-473c-m7p3-h25c
- 2026-10-16 CISA SSVC decision points changed
References
Patch 8
- https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9
- https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654
- https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d
- https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741
- https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948
- https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f
- https://git.kernel.org/stable/c/18043da94c023f3ef09c15017bdb04e8f695ef10
- https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec
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- 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-2022-49581 · CVE Program
- CVE-2022-49581 · NVD
- FIRST EPSS
- GHSA-473c-m7p3-h25c · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49581 · 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