MEDIUM
PPPoE socket PPPIOCGCHAN denial of service
Published May 8, 2007
4.9
MEDIUMCVSS 2.0
EPSS 0.40%
Description
Memory leak in the PPP over Ethernet (PPPoE) socket implementation in the Linux kernel before 2.6.21-git8 allows local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized.
Affected products
No data.
- ≤ 2.6.21
No data.
Red Hat Enterprise Linux 4
kernel-0:2.6.9-55.0.2.EL
Fixed · RHSA-2007:0488
Red Hat Enterprise Linux 5
kernel-0:2.6.18-8.1.6.el5
Fixed · RHSA-2007:0376
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-55.0.2.EL | Fixed | RHSA-2007:0488 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-8.1.6.el5 | Fixed | RHSA-2007:0376 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
4.9 MEDIUM NVD
AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.40% 0.00405
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00405
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.40% (0.00405) | 32.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00405) | 32.01th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00088) | 23.10th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.39th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.06% (0.00064) | 28.20th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (34)
- http://kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.21-git8.log x_refsource_CONFIRMPatch
- http://rhn.redhat.com/errata/RHSA-2007-0488.html vendor-advisoryx_refsource_REDHATVendor Advisory
- http://secunia.com/advisories/25163 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/25700 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/25838 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26133 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26139 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26289 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26450 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26620 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26664 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27227 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/29058 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm x_refsource_CONFIRM
- http://www.debian.org/security/2007/dsa-1356 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2008/dsa-1503 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2008/dsa-1504 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:171 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:196 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:216 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2007_51_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.novell.com/linux/security/advisories/2007_53_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/23870 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/usn-486-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-489-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-510-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2007/1703 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2007-2525 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=243262 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34150 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2007-2525
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10594 vdb-entrysignaturex_refsource_OVAL
- https://rhn.redhat.com/errata/RHSA-2007-0376.html vendor-advisoryx_refsource_REDHATVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2007-2525
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 8, 2007
Updated Aug 7, 2024
Reserved May 8, 2007
Link CVE-2007-2525
CISA Vulnrichment
Updated n/a