{
    "id": "CVE-2010-0442",
    "published": "2010-02-02 18:30:00",
    "last_modified": "2026-06-16 23:16:11",
    "cvss_score": "6.5",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
    "cwe": "CWE-189",
    "description": "The bitsubstr function in backend/utils/adt/varbit.c in PostgreSQL 8.0.23, 8.1.11, and 8.3.8 allows remote authenticated users to cause a denial of service (daemon crash) or have unspecified other impact via vectors involving a negative integer in the third argument, as demonstrated by a SELECT statement that contains a call to the substring function for a bit string, related to an \"overflow.\"",
    "epss_score": "0.13255",
    "epss_percentile": "0.96258",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:09",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "postgresql",
            "product": "postgresql"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "33571",
            "title": "PostgreSQL - 'bitsubstr' Buffer Overflow",
            "date": "2010-01-27",
            "url": "https://www.exploit-db.com/exploits/33571"
        }
    ],
    "refs_list": [
        "http://archives.postgresql.org/pgsql-committers/2010-01/msg00125.php",
        "http://archives.postgresql.org/pgsql-hackers/2010-01/msg00634.php",
        "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=567058",
        "http://git.postgresql.org/gitweb?p=postgresql.git%3Ba=commit%3Bh=75dea10196c31d98d98c0bafeeb576ae99c09b12",
        "http://git.postgresql.org/gitweb?p=postgresql.git%3Ba=commit%3Bh=b15087cb39ca9e4bde3c8920fcee3741045d2b83",
        "http://intevydis.blogspot.com/2010/01/postgresql-8023-bitsubstr-overflow.html",
        "http://secunia.com/advisories/39566",
        "http://secunia.com/advisories/39820",
        "http://secunia.com/advisories/39939",
        "http://securitytracker.com/id?1023510",
        "http://ubuntu.com/usn/usn-933-1",
        "http://www.debian.org/security/2010/dsa-2051",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:103",
        "http://www.openwall.com/lists/oss-security/2010/01/27/5",
        "http://www.redhat.com/support/errata/RHSA-2010-0427.html",
        "http://www.redhat.com/support/errata/RHSA-2010-0428.html",
        "http://www.redhat.com/support/errata/RHSA-2010-0429.html",
        "http://www.securityfocus.com/bid/37973",
        "http://www.vupen.com/english/advisories/2010/1022",
        "http://www.vupen.com/english/advisories/2010/1197",
        "http://www.vupen.com/english/advisories/2010/1207",
        "http://www.vupen.com/english/advisories/2010/1221",
        "https://bugzilla.redhat.com/show_bug.cgi?id=559194",
        "https://bugzilla.redhat.com/show_bug.cgi?id=559259",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/55902"
    ]
}