{
    "id": "CVE-2010-4052",
    "published": "2011-01-13 19:00:02",
    "last_modified": "2026-06-16 23:24:03",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
    "cwe": "CWE-399",
    "description": "Stack consumption vulnerability in the regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent attackers to cause a denial of service (resource exhaustion) via a regular expression containing adjacent repetition operators, as demonstrated by a {10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD.",
    "epss_score": "0.51298",
    "epss_percentile": "0.98902",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:17:53",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "gnu",
            "product": "glibc"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "15935",
            "title": "GNU libc/regcomp(3) - Multiple Vulnerabilities",
            "date": "2011-01-07",
            "url": "https://www.exploit-db.com/exploits/15935"
        },
        {
            "source": "exploit-db",
            "ref_id": "35061",
            "title": "GNU glibc - 'regcomp()' Stack Exhaustion Denial of Service",
            "date": "2010-12-07",
            "url": "https://www.exploit-db.com/exploits/35061"
        }
    ],
    "refs_list": [
        "http://cxib.net/stuff/proftpd.gnu.c",
        "http://seclists.org/fulldisclosure/2011/Jan/78",
        "http://secunia.com/advisories/42547",
        "http://securityreason.com/achievement_securityalert/93",
        "http://securityreason.com/securityalert/8003",
        "http://securitytracker.com/id?1024832",
        "http://www.exploit-db.com/exploits/15935",
        "http://www.kb.cert.org/vuls/id/912279",
        "http://www.securityfocus.com/archive/1/515589/100/0/threaded",
        "http://www.securityfocus.com/bid/45233",
        "https://bugzilla.redhat.com/show_bug.cgi?id=645859",
        "http://cxib.net/stuff/proftpd.gnu.c",
        "http://seclists.org/fulldisclosure/2011/Jan/78",
        "http://secunia.com/advisories/42547",
        "http://securityreason.com/achievement_securityalert/93",
        "http://securityreason.com/securityalert/8003",
        "http://securitytracker.com/id?1024832",
        "http://www.exploit-db.com/exploits/15935",
        "http://www.kb.cert.org/vuls/id/912279",
        "http://www.securityfocus.com/archive/1/515589/100/0/threaded",
        "http://www.securityfocus.com/bid/45233",
        "https://bugzilla.redhat.com/show_bug.cgi?id=645859"
    ]
}