FKIE_CVE-2011-0064
Vulnerability from fkie_nvd - Published: 2011-03-07 21:00 - Updated: 2026-06-16 23:26
Severity
Summary
The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:gnome:pango:1.28.3:*:*:*:*:*:*:*",
"matchCriteriaId": "956EB013-290A-446A-9A88-FE3F73EBD0CE",
"vulnerable": true
},
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index."
},
{
"lang": "es",
"value": "La funci\u00f3n hb_buffer_ensure en hb-buffer.c de HarfBuzz, como el usuado en Pango v1.28.3,Firefox otros productos, no verifica que las reasignaciones de memoria sean exitosas, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (desreferenciar el puntero a NULL y bloqueo de la aplicaci\u00f3n) o posiblemente ejecutar c\u00f3digo arbitrario a trav\u00e9s de datos manipulados con fuente OpenType que provoca el uso de un \u00edndice incorrecto."
}
],
"evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html \r\n\u0027CWE-476: NULL Pointer Dereference\u0027",
"id": "CVE-2011-0064",
"lastModified": "2026-06-16T23:26:43.537",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
]
},
"published": "2011-03-07T21:00:01.330",
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"tags": [
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"url": "http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9"
},
{
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"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056065.html"
},
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"url": "http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html"
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"url": "http://www.debian.org/security/2011/dsa-2178"
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"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:040"
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{
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"url": "http://www.redhat.com/support/errata/RHSA-2011-0309.html"
},
{
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"url": "http://www.securityfocus.com/bid/46632"
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{
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"url": "http://www.ubuntu.com/usn/USN-1082-1"
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"url": "http://www.vupen.com/english/advisories/2011/0584"
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{
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"url": "http://www.vupen.com/english/advisories/2011/0683"
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{
"source": "cve@mitre.org",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=606997"
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{
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"url": "https://bugzilla.novell.com/show_bug.cgi?id=672502"
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],
"url": "https://build.opensuse.org/request/show/63070"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65770"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056065.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html"
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"tags": [
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},
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{
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"url": "http://www.redhat.com/support/errata/RHSA-2011-0309.html"
},
{
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"url": "http://www.securityfocus.com/bid/46632"
},
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"url": "http://www.ubuntu.com/usn/USN-1082-1"
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"url": "http://www.vupen.com/english/advisories/2011/0584"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vupen.com/english/advisories/2011/0683"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=606997"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.novell.com/show_bug.cgi?id=672502"
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"vulnStatus": "Modified",
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]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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