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    CVE-2007-4826

    bgpd in Quagga before 0.99.9 allows explicitly configured BGP peers to cause a denial of service (crash) via a malformed (1) OPEN message or (2) a COMMUNITY attribute, which triggers a NULL pointer dereference. NOTE: vector 2 only exists when debugging is enabled.

    Published:Sep 7, 2007
    Last Modified:Apr 23, 2026
    EPS:Sep 12, 2007
    EPSS Score:0.0142
    CVSS Score:3.5

    Affected Products

    Vendor
    Quagga
    Product
    Quagga
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-44038 (CVSS 7.8) — An issue was discovered in Quagga through 1.2.4. Unsafe chown/chmod operations in the suggested spec file allo…
    CVE-2018-5380 (CVSS 4.3) — The Quagga BGP daemon (bgpd) prior to version 1.2.3 can overrun internal BGP code-to-string conversion tables …
    CVE-2018-5379 (CVSS 7.5) — The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of UP…
    CVE-2018-5378 (CVSS 7.1) — The Quagga BGP daemon (bgpd) prior to version 1.2.3 does not properly bounds check the data sent with a NOTIFY…
    CVE-2018-5381 (CVSS 6.5) — The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN mes…
    CVE-2017-16227 (CVSS 7.5) — The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial …
    CVE-2017-3224 (CVSS 8.2) — Open Shortest Path First (OSPF) protocol implementations may improperly determine Link State Advertisement (LS…
    CVE-2017-5495 (CVSS 7.5) — All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vt…
    CVE-2016-1245 (CVSS 9.8) — It was discovered that the zebra daemon in Quagga before 1.0.20161017 suffered from a stack-based buffer overf…
    CVE-2016-4049 (CVSS 7.5) — The bgp_dump_routes_func function in bgpd/bgp_dump.c in Quagga does not perform size checks when dumping data,…

    References

    http://fedoranews.org/updates/FEDORA-2007-219.shtml
    http://lists.debian.org/debian-security-announce/debian-security-announce-2007/msg00153.html
    http://quagga.net/news2.php?y=2007&m=9&d=7#id1189190760
    http://secunia.com/advisories/26744
    http://secunia.com/advisories/26829
    http://secunia.com/advisories/26863
    http://secunia.com/advisories/27049
    http://secunia.com/advisories/29743
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-236141-1
    http://www.debian.org/security/2007/dsa-1382
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:182
    http://www.quagga.net/download/quagga-0.99.9.changelog.txt
    http://www.redhat.com/support/errata/RHSA-2010-0785.html
    http://www.securityfocus.com/bid/25634
    http://www.trustix.org/errata/2007/0028/
    http://www.ubuntu.com/usn/usn-512-1
    http://www.vupen.com/english/advisories/2007/3129
    http://www.vupen.com/english/advisories/2008/1195/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/36551
    http://fedoranews.org/updates/FEDORA-2007-219.shtml
    http://lists.debian.org/debian-security-announce/debian-security-announce-2007/msg00153.html
    http://quagga.net/news2.php?y=2007&m=9&d=7#id1189190760
    http://secunia.com/advisories/26744
    http://secunia.com/advisories/26829
    http://secunia.com/advisories/26863
    http://secunia.com/advisories/27049
    http://secunia.com/advisories/29743
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-236141-1
    http://www.debian.org/security/2007/dsa-1382
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:182
    http://www.quagga.net/download/quagga-0.99.9.changelog.txt
    http://www.redhat.com/support/errata/RHSA-2010-0785.html
    http://www.securityfocus.com/bid/25634
    http://www.trustix.org/errata/2007/0028/
    http://www.ubuntu.com/usn/usn-512-1
    http://www.vupen.com/english/advisories/2007/3129
    http://www.vupen.com/english/advisories/2008/1195/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/36551

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High