wpa_supplicant: EAP-pwd missing last fragment length validation
Published Feb 21, 2018
5.9
MEDIUMCVSS 3.0
EPSS 2.50%
Description
The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a network configuration profile, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.
Affected products
No data.
Configuration 1
- ≥ 2.0 · < 2.6
Configuration 2
- 8.0
No data.
Red Hat Enterprise Linux 5
wpa_supplicant
Not affected
Red Hat Enterprise Linux 6
wpa_supplicant
Not affected
Red Hat Enterprise Linux 7
wpa_supplicant
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 7 | wpa_supplicant | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, 6, and 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.50% (0.02500) | 84.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.59% (0.02588) | 83.19th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.55% (0.01554) | 79.73th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.55% (0.03548) | 79.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.55% (0.01554) | 80.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.67% (0.01673) | 88.16th | v3 (v2023.03.01) |
| Sep 17, 2023 | 1.67% (0.01673) | 86.15th | v3 (v2023.03.01) |
| Jul 15, 2023 | 1.19% (0.01186) | 83.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.18% (0.01176) | 82.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (9)
- http://w1.fi/security/2015-7/
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt x_refsource_CONFIRMMitigationVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/11/10/10 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-2808-1 vendor-advisoryx_refsource_UBUNTUBroken Link
- https://access.redhat.com/security/cve/CVE-2015-5315 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1278377 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-5315
- https://www.cve.org/CVERecord?id=CVE-2015-5315
- https://www.debian.org/security/2015/dsa-3397 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://w1.fi/security/2015-7/ | ||
| http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt | x_refsource_CONFIRMMitigationVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2015/11/10/10 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-2808-1 | vendor-advisoryx_refsource_UBUNTUBroken Link | |
| https://access.redhat.com/security/cve/CVE-2015-5315 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1278377 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-5315 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-5315 | ||
| https://www.debian.org/security/2015/dsa-3397 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.