(ospf6d): Assertion failure when removing routes (retrieving information which route to remove)
Published Nov 25, 2019
6.5
MEDIUMCVSS 3.1
EPSS 1.49%
Description
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
Affected products
-
- Version 0.99.21StatusaffectedConstraints-
- Version
Configuration 2
- 8.0
- 9.0
- 10.0
Configuration 3
- 5.0
- 6.0
No data.
Red Hat Enterprise Linux 5
quagga
Will not fix
Red Hat Enterprise Linux 6
quagga
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | quagga | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | quagga | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:A/AC:L/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.49% (0.01494) | 73.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.49% (0.01494) | 70.70th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.20% (0.00203) | 40.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00446) | 75.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00388) | 72.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.39% (0.00388) | 69.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
References (11)
- http://www.openwall.com/lists/oss-security/2012/11/13/14 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/56530 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2012-5521 Vendor Advisory
- https://access.redhat.com/security/cve/cve-2012-5521 x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=876197 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5521 x_refsource_MISCIssue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-5521 x_refsource_MISCIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80096 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2012-5521
- https://security-tracker.debian.org/tracker/CVE-2012-5521 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2012-5521
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2012/11/13/14 | x_refsource_MISCMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/56530 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2012-5521 | Vendor Advisory | |
| https://access.redhat.com/security/cve/cve-2012-5521 | x_refsource_MISCThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=876197 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5521 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-5521 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80096 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-5521 | ||
| https://security-tracker.debian.org/tracker/CVE-2012-5521 | x_refsource_MISCThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2012-5521 |
Change history (0)
No recorded changes yet.