(ospfd): Denial of service by decoding Link State Update LSAs of unknown type
Published Oct 10, 2011
5.0
MEDIUMCVSS 2.0
EPSS 4.63%
Description
The ospf_flood function in ospf_flood.c in ospfd in Quagga before 0.99.19 allows remote attackers to cause a denial of service (daemon crash) via an invalid Link State Advertisement (LSA) type in an IPv4 Link State Update message.
Affected products
No data.
- ≤ 0.99.18
- 0.95
- 0.96
- 0.96.1
- 0.96.2
- 0.96.3
- 0.96.4
- 0.96.5
- 0.97.0
- 0.97.1
- 0.97.2
- 0.97.3
- 0.97.4
- 0.97.5
- 0.98.0
- 0.98.1
- 0.98.2
- 0.98.3
- 0.98.4
- 0.98.5
- 0.98.6
- 0.99.1
- 0.99.2
- 0.99.3
- 0.99.4
- 0.99.5
- 0.99.6
- 0.99.7
- 0.99.8
- 0.99.9
- 0.99.10
- 0.99.11
- 0.99.12
- 0.99.13
- 0.99.14
- 0.99.15
- 0.99.16
- 0.99.17
No data.
Red Hat Enterprise Linux 5
quagga-0:0.98.6-7.el5_8.1
Fixed · RHSA-2012:1258
Red Hat Enterprise Linux 6
quagga-0:0.99.15-7.el6_3.2
Fixed · RHSA-2012:1259
Red Hat Enterprise Linux 4
quagga
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | quagga-0:0.98.6-7.el5_8.1 | Fixed | RHSA-2012:1258 |
| Red Hat Enterprise Linux 6 | quagga-0:0.99.15-7.el6_3.2 | Fixed | RHSA-2012:1259 |
| Red Hat Enterprise Linux 4 | quagga | Affected | n/a |
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.
AV:N/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.63% (0.04628) | 91.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.63% (0.04628) | 90.49th | v5 (v2026.06.15) |
| Dec 1, 2025 | 4.23% (0.04228) | 88.40th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.57% (0.07568) | 91.00th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.06% (0.09060) | 87.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.01% (0.08010) | 91.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 9.13% (0.09135) | 94.91th | v3 (v2023.03.01) |
| Nov 8, 2023 | 9.13% (0.09135) | 94.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.89% (0.08892) | 93.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (19)
- http://code.quagga.net/?p=quagga.git%3Ba=commit%3Bh=6b161fc12a15aba8824c84d1eb38e529aaf70769 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00027.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00007.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00010.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00009.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2012-1258.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-1259.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/46139 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/46274 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/48106 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201202-02.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2011/dsa-2316 vendor-advisoryx_refsource_DEBIAN
- http://www.kb.cert.org/vuls/id/668534 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.quagga.net/download/quagga-0.99.19.changelog.txt x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2011-3326 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=738398 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-3326
- https://www.cert.fi/en/reports/2011/vulnerability539178.html x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2011-3326
Change history (0)
No recorded changes yet.