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    CVE-2011-1924

    Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.

    Published:Jun 14, 2011
    Last Modified:Apr 11, 2025
    EPS:Jun 14, 2011
    EPSS Score:0.01591
    CVSS Score:5

    Affected Products

    Vendor
    Tor
    Product
    Tor

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-4444 (CVSS 6.3) — A security flaw has been discovered in Tor up to 0.4.7.16/0.4.8.17. Impacted is an unknown function of the com…
    CVE-2012-3517 (CVSS 5) — Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of…
    CVE-2012-3518 (CVSS 5) — The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly ha…
    CVE-2012-3519 (CVSS 5) — routerlist.c in Tor before 0.2.2.38 uses a different amount of time for relay-list iteration depending on whic…
    CVE-2011-4894 (CVSS 4.3) — Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection f…
    CVE-2011-2769 (CVSS 4.3) — Tor before 0.2.2.34, when configured as a bridge, accepts the CREATE and CREATE_FAST values in the Command fie…
    CVE-2011-4895 (CVSS 4.3) — Tor before 0.2.2.34, when configured as a bridge, sets up circuits through a process different from the proces…
    CVE-2011-4897 (CVSS 4.3) — Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the loca…
    CVE-2011-2778 (CVSS 7.6) — Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of servic…
    CVE-2011-4896 (CVSS 4.3) — Tor before 0.2.2.24-alpha continues to use a reachable bridge that was previously configured but is not curren…

    References

    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061258.html
    http://secunia.com/advisories/43548
    http://secunia.com/advisories/44862
    http://www.securityfocus.com/bid/46618
    https://bugzilla.redhat.com/show_bug.cgi?id=705192
    https://bugzilla.redhat.com/show_bug.cgi?id=705194
    https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e
    https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061258.html
    http://secunia.com/advisories/43548
    http://secunia.com/advisories/44862
    http://www.securityfocus.com/bid/46618
    https://bugzilla.redhat.com/show_bug.cgi?id=705192
    https://bugzilla.redhat.com/show_bug.cgi?id=705194
    https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e
    https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html

    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