FKIE_CVE-2012-3461
Vulnerability from fkie_nvd - Published: 2012-08-20 19:55 - Updated: 2025-04-11 00:51
Severity ?
Summary
The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 allocates a zero-length buffer when decoding a base64 string, which allows remote attackers to cause a denial of service (application crash) via a message with the value "?OTR:===.", which triggers a heap-based buffer overflow.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cypherpunks | libotr | * | |
| cypherpunks | libotr | 3.1.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cypherpunks:libotr:*:*:*:*:*:*:*:*",
"matchCriteriaId": "16FB55F1-A4DA-48A8-A7B9-8ADA15F28F20",
"versionEndIncluding": "3.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cypherpunks:libotr:3.1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "917BC37B-B3B5-4802-BF1C-96F1893AC68F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 allocates a zero-length buffer when decoding a base64 string, which allows remote attackers to cause a denial of service (application crash) via a message with the value \"?OTR:===.\", which triggers a heap-based buffer overflow."
},
{
"lang": "es",
"value": "La funci\u00f3n (1) otrl_base64_otr_decode en src/b64.c; la funci\u00f3n (2) otrl_proto_data_read_flags y la funci\u00f3n (3) otrl_proto_accept_data en src/proto.c; y la funci\u00f3n (4) (decode) in toolkit/parse.c in libotr before v3.2.1 asigna un b\u00fafer de longitud cero cuando se decodifica un (string) en base64, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un mensaje con el valor \"?OTR:===.\", lo cual dispara un desbordamiento de b\u00fafer basado en memoria din\u00e1mica."
}
],
"id": "CVE-2012-3461",
"lastModified": "2025-04-11T00:51:21.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-08-20T19:55:05.527",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684121"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001347.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001348.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00016.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00019.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00019.html"
},
{
"source": "secalert@redhat.com",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=1902baee5d4b056850274ed0fa8c2409f1187435"
},
{
"source": "secalert@redhat.com",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=6d4ca89cf1d3c9a8aff696c3a846ac5a51f762c1"
},
{
"source": "secalert@redhat.com",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=b17232f86f8e60d0d22caf9a2400494d3c77da58"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2012/dsa-2526"
},
{
"source": "secalert@redhat.com",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:131"
},
{
"source": "secalert@redhat.com",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:097"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/54907"
},
{
"source": "secalert@redhat.com",
"url": "http://www.ubuntu.com/usn/USN-1541-1"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=846377"
},
{
"source": "secalert@redhat.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/77528"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684121"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001347.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001348.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00016.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00019.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00019.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=1902baee5d4b056850274ed0fa8c2409f1187435"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=6d4ca89cf1d3c9a8aff696c3a846ac5a51f762c1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=b17232f86f8e60d0d22caf9a2400494d3c77da58"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2012/dsa-2526"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:131"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:097"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/54907"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/USN-1541-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=846377"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/77528"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- 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.
Loading…
Loading…