fkie_cve-2012-0021
Vulnerability from fkie_nvd
Published
2012-01-28 04:05
Modified
2025-04-11 00:51
Severity ?
Summary
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | 2.2.17 | |
| apache | http_server | 2.2.18 | |
| apache | http_server | 2.2.19 | |
| apache | http_server | 2.2.20 | |
| apache | http_server | 2.2.21 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:http_server:2.2.17:*:*:*:*:*:*:*",
"matchCriteriaId": "A71F4154-AD20-4EEA-9E2E-D3385C357DA5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:http_server:2.2.18:*:*:*:*:*:*:*",
"matchCriteriaId": "B0B8C9DB-401E-42B3-BAED-D09A96DE9A90",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*",
"matchCriteriaId": "062C20A0-05A0-4164-8330-DF6ADFE607F4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*",
"matchCriteriaId": "D345BA35-93BB-406F-B5DC-86E49FB29C22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*",
"matchCriteriaId": "7ED4892F-C829-4BEA-AB82-6A78F6F2426D",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value."
},
{
"lang": "es",
"value": "La funci\u00f3n log_cookie en mod_log_config.c en el m\u00f3dulo de mod_log_config en Apache HTTP Server v2.2.17 a v2.2.21, cuando se usa MPM multihilo , no controla correctamente una cadena de formato %{}C , lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda del demonio) a trav\u00e9s de una cookie que carece de un nombre y un valor."
}
],
"id": "CVE-2012-0021",
"lastModified": "2025-04-11T00:51:21.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.6,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 4.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-01-28T04:05:00.750",
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Deferred",
"weaknesses": [
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{
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"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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