(bgpd): Heap-based buffer overflow by decoding BGP UPDATE message with unknown AS_PATH attributes
Published Oct 10, 2011
7.5
HIGHCVSS 2.0
EPSS 7.61%
Description
Heap-based buffer overflow in the ecommunity_ecom2str function in bgp_ecommunity.c in bgpd in Quagga before 0.99.19 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by sending a crafted BGP UPDATE message over IPv4.
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:P/I:P/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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.61% (0.07615) | 94.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.61% (0.07615) | 93.76th | v5 (v2026.06.15) |
| Jun 13, 2026 | 21.92% (0.21916) | 95.91th | v4 (v2025.03.14) |
| Apr 11, 2026 | 20.40% (0.20398) | 95.54th | v4 (v2025.03.14) |
| Dec 1, 2025 | 16.64% (0.16642) | 94.71th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.55% (0.21550) | 95.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 28.32% (0.28315) | 94.44th | v4 (v2025.03.14) |
| Mar 19, 2025 | 21.55% (0.21550) | 95.01th | v4 (v2025.03.14) |
| Mar 17, 2025 | 19.67% (0.19674) | 94.96th | v4 (v2025.03.14) |
| Dec 17, 2024 | 34.69% (0.34687) | 97.12th | v3 (v2023.03.01) |
| Apr 9, 2024 | 30.35% (0.30350) | 96.85th | v3 (v2023.03.01) |
| Nov 8, 2023 | 28.61% (0.28605) | 96.37th | v3 (v2023.03.01) |
| Sep 5, 2023 | 26.11% (0.26112) | 96.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 25.56% (0.25557) | 95.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (19)
- http://code.quagga.net/?p=quagga.git%3Ba=commit%3Bh=94431dbc753171b48b5c6806af97fd690813b00a 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-2011-3327 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=738400 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-3327
- https://www.cert.fi/en/reports/2011/vulnerability539178.html x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2011-3327
Change history (0)
No recorded changes yet.