CVE-2011-3327
Heap-based buffer overflow in the ecommunity_ecom2str function in bgp_ecommunity.c in bgpd in...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2011-3327- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2011-3327- Updated
- 2026-11-02
EUVDEUVD-2011-3291No score
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.
- Record
EUVD-2011-3291- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3f8p-77gw-5f5cNo score
Heap-based buffer overflow in the ecommunity_ecom2str function in bgp_ecommunity.c in bgpd in...
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.
- Record
GHSA-3f8p-77gw-5f5c- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
quaggaDebian:5.0 From an advisory covering 5 CVEs | before 0.99.10-1lenny6, plus listed versions 0.99.10-1lenny10.99.10-1lenny20.99.10-1lenny30.99.10-1lenny5 | 0.99.10-1lenny6 |
quaggaDebian:6.0 From an advisory covering 5 CVEs | before 0.99.17-2+squeeze3, plus listed versions 0.99.17-20.99.17-2+squeeze2 | 0.99.17-2+squeeze3 |
quaggaRed Hat:enterprise_linux:5::client From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-contribRed Hat:enterprise_linux:5::client From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quaggaRed Hat:enterprise_linux:5::client_workstation From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-debuginfoRed Hat:enterprise_linux:5::client_workstation From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-develRed Hat:enterprise_linux:5::client_workstation From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quaggaRed Hat:enterprise_linux:5::server From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-contribRed Hat:enterprise_linux:5::server From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
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| Package | Affected | Fixed |
|---|---|---|
quagga-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quagga-develRed Hat:enterprise_linux:5::server From an advisory covering 8 CVEs | before 0:0.98.6-7.el5_8.1 | 0:0.98.6-7.el5_8.1 |
quaggaRed Hat:enterprise_linux:6::server From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-contribRed Hat:enterprise_linux:6::server From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-develRed Hat:enterprise_linux:6::server From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quaggaRed Hat:enterprise_linux:6::workstation From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-debuginfoRed Hat:enterprise_linux:6::workstation From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-contribRed Hat:enterprise_linux:6::workstation From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
quagga-develRed Hat:enterprise_linux:6::workstation From an advisory covering 9 CVEs | before 0:0.99.15-7.el6_3.2 | 0:0.99.15-7.el6_3.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-3327 is a high vulnerability (CVSS 7.5) in Quagga, published October 5, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.61%, the 94th percentile. No source names a fixed version.
References
quagga.net/download/quagga-0.99.19.changelog.txt
kb.cert.org/vuls/id/668534
debian.org/security/2011/dsa-2316
rhn.redhat.com/errata/RHSA-2012-1259.html
cert.fi/en/reports/2011/vulnerability539178.html
secunia.com/advisories/46139
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lists.opensuse.org/opensuse-security-announce/2011-09/msg00027.html
code.quagga.net?p=quagga.git%3Ba=commit%3Bh=94431dbc753171b48b5c6806af97fd690813b00a
security.gentoo.org/glsa/glsa-201202-02.xml
bugzilla.redhat.com/show_bug.cgi?id=738400
nvd.nist.gov/vuln/detail/CVE-2011-3327
github.com/advisories/GHSA-3f8p-77gw-5f5c
access.redhat.com/errata/RHSA-2012:1258
security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1258.json
cve.org/CVERecord?id=CVE-2010-1674