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CERTFR-2024-AVI-0882
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Oracle Database Server. Elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Oracle | Database Server | Oracle Database Server versions 19.3 à 19.24 sans le dernier correctif de sécurité | ||
| Oracle | Database Server | Fleet Patching and Provisioning - Micronaut versions 23.4 et 23.5 sans le dernier correctif | ||
| Oracle | Database Server | Oracle Spatial and Graph versions 23.4 à 23.5 sans le dernier correctif de sécurité | ||
| Oracle | Database Server | Oracle Spatial and Graph versions 19.3 à 19.24 sans le dernier correctif de sécurité | ||
| Oracle | Database Server | Oracle Database Server versions 21.3 à 21.15 sans le dernier correctif de sécurité | ||
| Oracle | Database Server | Oracle Database Server versions 23.4 à 23.5 sans le dernier correctif de sécurité | ||
| Oracle | Database Server | Oracle Spatial and Graph versions 21.3 à 21.15 sans le dernier correctif de sécurité |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Oracle Database Server versions 19.3 \u00e0 19.24 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Fleet Patching and Provisioning - Micronaut versions 23.4 et 23.5 sans le dernier correctif",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Oracle Spatial and Graph versions 23.4 \u00e0 23.5 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Oracle Spatial and Graph versions 19.3 \u00e0 19.24 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Oracle Database Server versions 21.3 \u00e0 21.15 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Oracle Database Server versions 23.4 \u00e0 23.5 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "Oracle Spatial and Graph versions 21.3 \u00e0 21.15 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Database Server",
"vendor": {
"name": "Oracle",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2024-29025",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-29025"
},
{
"name": "CVE-2024-7264",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-7264"
},
{
"name": "CVE-2024-21242",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-21242"
},
{
"name": "CVE-2024-5535",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-5535"
},
{
"name": "CVE-2024-21233",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-21233"
},
{
"name": "CVE-2024-6119",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-6119"
},
{
"name": "CVE-2024-21251",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-21251"
}
],
"initial_release_date": "2024-10-16T00:00:00",
"last_revision_date": "2024-10-16T00:00:00",
"links": [],
"reference": "CERTFR-2024-AVI-0882",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-10-16T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Oracle Database Server. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Oracle Database Server",
"vendor_advisories": [
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 Oracle Database Server cpuoct2024",
"url": "https://www.oracle.com/security-alerts/cpuoct2024.html"
}
]
}
CVE-2024-6119 (GCVE-0-2024-6119)
Vulnerability from cvelistv5
Published
2024-09-03 15:58
Modified
2024-09-12 16:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Summary
Issue summary: Applications performing certificate name checks (e.g., TLS
clients checking server certificates) may attempt to read an invalid memory
address resulting in abnormal termination of the application process.
Impact summary: Abnormal termination of an application can a cause a denial of
service.
Applications performing certificate name checks (e.g., TLS clients checking
server certificates) may attempt to read an invalid memory address when
comparing the expected name with an `otherName` subject alternative name of an
X.509 certificate. This may result in an exception that terminates the
application program.
Note that basic certificate chain validation (signatures, dates, ...) is not
affected, the denial of service can occur only when the application also
specifies an expected DNS name, Email address or IP address.
TLS servers rarely solicit client certificates, and even when they do, they
generally don't perform a name check against a reference identifier (expected
identity), but rather extract the presented identity after checking the
certificate chain. So TLS servers are generally not affected and the severity
of the issue is Moderate.
The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.
References
Impacted products
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CVE-2024-21251 (GCVE-0-2024-21251)
Vulnerability from cvelistv5
Published
2024-10-15 19:52
Modified
2024-10-31 13:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Difficult to exploit vulnerability allows low privileged attacker having Create Session, Create Procedure privilege with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java VM accessible data.
Summary
Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.24, 21.3-21.15 and 23.4-23.5. Difficult to exploit vulnerability allows low privileged attacker having Create Session, Create Procedure privilege with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java VM accessible data. CVSS 3.1 Base Score 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N).
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Oracle Corporation | Oracle Database Server |
Version: 19.3 < Version: 21.3 < Version: 23.4 < cpe:2.3:a:oracle:database_-_java_vm:19.3-19.24:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_java_vm:21.3-21.15:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_java_vm:23.4-23.5:*:*:*:*:*:*:* |
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CVE-2024-21242 (GCVE-0-2024-21242)
Vulnerability from cvelistv5
Published
2024-10-15 19:52
Modified
2024-11-05 19:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via HTTP to compromise XML Database. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of XML Database.
Summary
Vulnerability in the XML Database component of Oracle Database Server. Supported versions that are affected are 19.3-19.24, 21.3-21.15 and 23.4-23.5. Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via HTTP to compromise XML Database. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of XML Database. CVSS 3.1 Base Score 3.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L).
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Oracle Corporation | Oracle Database Server |
Version: 19.3 < Version: 21.3 < Version: 23.4 < cpe:2.3:a:oracle:database_-_xml_database:19.3-19.24:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_xml_database:21.3-21.15:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_xml_database:23.4-23.5:*:*:*:*:*:*:* |
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CVE-2024-7264 (GCVE-0-2024-7264)
Vulnerability from cvelistv5
Published
2024-07-31 08:08
Modified
2025-02-13 17:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an
ASN.1 Generalized Time field. If given an syntactically incorrect field, the
parser might end up using -1 for the length of the *time fraction*, leading to
a `strlen()` getting performed on a pointer to a heap buffer area that is not
(purposely) null terminated.
This flaw most likely leads to a crash, but can also lead to heap contents
getting returned to the application when
[CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| curl | curl |
Version: 8.9.0 ≤ 8.9.0 Version: 8.8.0 ≤ 8.8.0 Version: 8.7.1 ≤ 8.7.1 Version: 8.7.0 ≤ 8.7.0 Version: 8.6.0 ≤ 8.6.0 Version: 8.5.0 ≤ 8.5.0 Version: 8.4.0 ≤ 8.4.0 Version: 8.3.0 ≤ 8.3.0 Version: 8.2.1 ≤ 8.2.1 Version: 8.2.0 ≤ 8.2.0 Version: 8.1.2 ≤ 8.1.2 Version: 8.1.1 ≤ 8.1.1 Version: 8.1.0 ≤ 8.1.0 Version: 8.0.1 ≤ 8.0.1 Version: 8.0.0 ≤ 8.0.0 Version: 7.88.1 ≤ 7.88.1 Version: 7.88.0 ≤ 7.88.0 Version: 7.87.0 ≤ 7.87.0 Version: 7.86.0 ≤ 7.86.0 Version: 7.85.0 ≤ 7.85.0 Version: 7.84.0 ≤ 7.84.0 Version: 7.83.1 ≤ 7.83.1 Version: 7.83.0 ≤ 7.83.0 Version: 7.82.0 ≤ 7.82.0 Version: 7.81.0 ≤ 7.81.0 Version: 7.80.0 ≤ 7.80.0 Version: 7.79.1 ≤ 7.79.1 Version: 7.79.0 ≤ 7.79.0 Version: 7.78.0 ≤ 7.78.0 Version: 7.77.0 ≤ 7.77.0 Version: 7.76.1 ≤ 7.76.1 Version: 7.76.0 ≤ 7.76.0 Version: 7.75.0 ≤ 7.75.0 Version: 7.74.0 ≤ 7.74.0 Version: 7.73.0 ≤ 7.73.0 Version: 7.72.0 ≤ 7.72.0 Version: 7.71.1 ≤ 7.71.1 Version: 7.71.0 ≤ 7.71.0 Version: 7.70.0 ≤ 7.70.0 Version: 7.69.1 ≤ 7.69.1 Version: 7.69.0 ≤ 7.69.0 Version: 7.68.0 ≤ 7.68.0 Version: 7.67.0 ≤ 7.67.0 Version: 7.66.0 ≤ 7.66.0 Version: 7.65.3 ≤ 7.65.3 Version: 7.65.2 ≤ 7.65.2 Version: 7.65.1 ≤ 7.65.1 Version: 7.65.0 ≤ 7.65.0 Version: 7.64.1 ≤ 7.64.1 Version: 7.64.0 ≤ 7.64.0 Version: 7.63.0 ≤ 7.63.0 Version: 7.62.0 ≤ 7.62.0 Version: 7.61.1 ≤ 7.61.1 Version: 7.61.0 ≤ 7.61.0 Version: 7.60.0 ≤ 7.60.0 Version: 7.59.0 ≤ 7.59.0 Version: 7.58.0 ≤ 7.58.0 Version: 7.57.0 ≤ 7.57.0 Version: 7.56.1 ≤ 7.56.1 Version: 7.56.0 ≤ 7.56.0 Version: 7.55.1 ≤ 7.55.1 Version: 7.55.0 ≤ 7.55.0 Version: 7.54.1 ≤ 7.54.1 Version: 7.54.0 ≤ 7.54.0 Version: 7.53.1 ≤ 7.53.1 Version: 7.53.0 ≤ 7.53.0 Version: 7.52.1 ≤ 7.52.1 Version: 7.52.0 ≤ 7.52.0 Version: 7.51.0 ≤ 7.51.0 Version: 7.50.3 ≤ 7.50.3 Version: 7.50.2 ≤ 7.50.2 Version: 7.50.1 ≤ 7.50.1 Version: 7.50.0 ≤ 7.50.0 Version: 7.49.1 ≤ 7.49.1 Version: 7.49.0 ≤ 7.49.0 Version: 7.48.0 ≤ 7.48.0 Version: 7.47.1 ≤ 7.47.1 Version: 7.47.0 ≤ 7.47.0 Version: 7.46.0 ≤ 7.46.0 Version: 7.45.0 ≤ 7.45.0 Version: 7.44.0 ≤ 7.44.0 Version: 7.43.0 ≤ 7.43.0 Version: 7.42.1 ≤ 7.42.1 Version: 7.42.0 ≤ 7.42.0 Version: 7.41.0 ≤ 7.41.0 Version: 7.40.0 ≤ 7.40.0 Version: 7.39.0 ≤ 7.39.0 Version: 7.38.0 ≤ 7.38.0 Version: 7.37.1 ≤ 7.37.1 Version: 7.37.0 ≤ 7.37.0 Version: 7.36.0 ≤ 7.36.0 Version: 7.35.0 ≤ 7.35.0 Version: 7.34.0 ≤ 7.34.0 Version: 7.33.0 ≤ 7.33.0 Version: 7.32.0 ≤ 7.32.0 |
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CVE-2024-21233 (GCVE-0-2024-21233)
Vulnerability from cvelistv5
Published
2024-10-15 19:52
Modified
2024-10-31 13:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via Oracle Net to compromise Oracle Database Core. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Database Core accessible data.
Summary
Vulnerability in the Oracle Database Core component of Oracle Database Server. Supported versions that are affected are 19.3-19.24, 21.3-21.15 and 23.4-23.5. Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via Oracle Net to compromise Oracle Database Core. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Database Core accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Oracle Corporation | Oracle Database Server |
Version: 19.3 < Version: 21.3 < Version: 23.4 < cpe:2.3:a:oracle:database_-_core:19.3-19.24:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_core:21.3-21.15:*:*:*:*:*:*:* cpe:2.3:a:oracle:database_-_core:23.4-23.5:*:*:*:*:*:*:* |
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CVE-2024-29025 (GCVE-0-2024-29025)
Vulnerability from cvelistv5
Published
2024-03-25 20:09
Modified
2025-02-13 17:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. The `HttpPostRequestDecoder` can be tricked to accumulate data. While the decoder can store items on the disk if configured so, there are no limits to the number of fields the form can have, an attacher can send a chunked post consisting of many small fields that will be accumulated in the `bodyListHttpData` list. The decoder cumulates bytes in the `undecodedChunk` buffer until it can decode a field, this field can cumulate data without limits. This vulnerability is fixed in 4.1.108.Final.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2024-5535 (GCVE-0-2024-5535)
Vulnerability from cvelistv5
Published
2024-06-27 10:30
Modified
2025-09-01 08:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an
empty supported client protocols buffer may cause a crash or memory contents to
be sent to the peer.
Impact summary: A buffer overread can have a range of potential consequences
such as unexpected application beahviour or a crash. In particular this issue
could result in up to 255 bytes of arbitrary private data from memory being sent
to the peer leading to a loss of confidentiality. However, only applications
that directly call the SSL_select_next_proto function with a 0 length list of
supported client protocols are affected by this issue. This would normally never
be a valid scenario and is typically not under attacker control but may occur by
accident in the case of a configuration or programming error in the calling
application.
The OpenSSL API function SSL_select_next_proto is typically used by TLS
applications that support ALPN (Application Layer Protocol Negotiation) or NPN
(Next Protocol Negotiation). NPN is older, was never standardised and
is deprecated in favour of ALPN. We believe that ALPN is significantly more
widely deployed than NPN. The SSL_select_next_proto function accepts a list of
protocols from the server and a list of protocols from the client and returns
the first protocol that appears in the server list that also appears in the
client list. In the case of no overlap between the two lists it returns the
first item in the client list. In either case it will signal whether an overlap
between the two lists was found. In the case where SSL_select_next_proto is
called with a zero length client list it fails to notice this condition and
returns the memory immediately following the client list pointer (and reports
that there was no overlap in the lists).
This function is typically called from a server side application callback for
ALPN or a client side application callback for NPN. In the case of ALPN the list
of protocols supplied by the client is guaranteed by libssl to never be zero in
length. The list of server protocols comes from the application and should never
normally be expected to be of zero length. In this case if the
SSL_select_next_proto function has been called as expected (with the list
supplied by the client passed in the client/client_len parameters), then the
application will not be vulnerable to this issue. If the application has
accidentally been configured with a zero length server list, and has
accidentally passed that zero length server list in the client/client_len
parameters, and has additionally failed to correctly handle a "no overlap"
response (which would normally result in a handshake failure in ALPN) then it
will be vulnerable to this problem.
In the case of NPN, the protocol permits the client to opportunistically select
a protocol when there is no overlap. OpenSSL returns the first client protocol
in the no overlap case in support of this. The list of client protocols comes
from the application and should never normally be expected to be of zero length.
However if the SSL_select_next_proto function is accidentally called with a
client_len of 0 then an invalid memory pointer will be returned instead. If the
application uses this output as the opportunistic protocol then the loss of
confidentiality will occur.
This issue has been assessed as Low severity because applications are most
likely to be vulnerable if they are using NPN instead of ALPN - but NPN is not
widely used. It also requires an application configuration or programming error.
Finally, this issue would not typically be under attacker control making active
exploitation unlikely.
The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.
Due to the low severity of this issue we are not issuing new releases of
OpenSSL at this time. The fix will be included in the next releases when they
become available.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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"lessThan": "3.3.2",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
},
{
"lessThan": "3.2.3",
"status": "affected",
"version": "3.2.0",
"versionType": "semver"
},
{
"lessThan": "3.1.7",
"status": "affected",
"version": "3.1.0",
"versionType": "semver"
},
{
"lessThan": "3.0.15",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1za",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zk",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joseph Birr-Pixton"
},
{
"lang": "en",
"type": "analyst",
"value": "David Benjamin (Google)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Matt Caswell"
}
],
"datePublic": "2024-06-26T23:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an\u003cbr\u003eempty supported client protocols buffer may cause a crash or memory contents to\u003cbr\u003ebe sent to the peer.\u003cbr\u003e\u003cbr\u003eImpact summary: A buffer overread can have a range of potential consequences\u003cbr\u003esuch as unexpected application beahviour or a crash. In particular this issue\u003cbr\u003ecould result in up to 255 bytes of arbitrary private data from memory being sent\u003cbr\u003eto the peer leading to a loss of confidentiality. However, only applications\u003cbr\u003ethat directly call the SSL_select_next_proto function with a 0 length list of\u003cbr\u003esupported client protocols are affected by this issue. This would normally never\u003cbr\u003ebe a valid scenario and is typically not under attacker control but may occur by\u003cbr\u003eaccident in the case of a configuration or programming error in the calling\u003cbr\u003eapplication.\u003cbr\u003e\u003cbr\u003eThe OpenSSL API function SSL_select_next_proto is typically used by TLS\u003cbr\u003eapplications that support ALPN (Application Layer Protocol Negotiation) or NPN\u003cbr\u003e(Next Protocol Negotiation). NPN is older, was never standardised and\u003cbr\u003eis deprecated in favour of ALPN. We believe that ALPN is significantly more\u003cbr\u003ewidely deployed than NPN. The SSL_select_next_proto function accepts a list of\u003cbr\u003eprotocols from the server and a list of protocols from the client and returns\u003cbr\u003ethe first protocol that appears in the server list that also appears in the\u003cbr\u003eclient list. In the case of no overlap between the two lists it returns the\u003cbr\u003efirst item in the client list. In either case it will signal whether an overlap\u003cbr\u003ebetween the two lists was found. In the case where SSL_select_next_proto is\u003cbr\u003ecalled with a zero length client list it fails to notice this condition and\u003cbr\u003ereturns the memory immediately following the client list pointer (and reports\u003cbr\u003ethat there was no overlap in the lists).\u003cbr\u003e\u003cbr\u003eThis function is typically called from a server side application callback for\u003cbr\u003eALPN or a client side application callback for NPN. In the case of ALPN the list\u003cbr\u003eof protocols supplied by the client is guaranteed by libssl to never be zero in\u003cbr\u003elength. The list of server protocols comes from the application and should never\u003cbr\u003enormally be expected to be of zero length. In this case if the\u003cbr\u003eSSL_select_next_proto function has been called as expected (with the list\u003cbr\u003esupplied by the client passed in the client/client_len parameters), then the\u003cbr\u003eapplication will not be vulnerable to this issue. If the application has\u003cbr\u003eaccidentally been configured with a zero length server list, and has\u003cbr\u003eaccidentally passed that zero length server list in the client/client_len\u003cbr\u003eparameters, and has additionally failed to correctly handle a \"no overlap\"\u003cbr\u003eresponse (which would normally result in a handshake failure in ALPN) then it\u003cbr\u003ewill be vulnerable to this problem.\u003cbr\u003e\u003cbr\u003eIn the case of NPN, the protocol permits the client to opportunistically select\u003cbr\u003ea protocol when there is no overlap. OpenSSL returns the first client protocol\u003cbr\u003ein the no overlap case in support of this. The list of client protocols comes\u003cbr\u003efrom the application and should never normally be expected to be of zero length.\u003cbr\u003eHowever if the SSL_select_next_proto function is accidentally called with a\u003cbr\u003eclient_len of 0 then an invalid memory pointer will be returned instead. If the\u003cbr\u003eapplication uses this output as the opportunistic protocol then the loss of\u003cbr\u003econfidentiality will occur.\u003cbr\u003e\u003cbr\u003eThis issue has been assessed as Low severity because applications are most\u003cbr\u003elikely to be vulnerable if they are using NPN instead of ALPN - but NPN is not\u003cbr\u003ewidely used. It also requires an application configuration or programming error.\u003cbr\u003eFinally, this issue would not typically be under attacker control making active\u003cbr\u003eexploitation unlikely.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.\u003cbr\u003e\u003cbr\u003e\n\nDue to the low severity of this issue we are not issuing new releases of\u003cbr\u003eOpenSSL at this time. The fix will be included in the next releases when they\u003cbr\u003ebecome available."
}
],
"value": "Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an\nempty supported client protocols buffer may cause a crash or memory contents to\nbe sent to the peer.\n\nImpact summary: A buffer overread can have a range of potential consequences\nsuch as unexpected application beahviour or a crash. In particular this issue\ncould result in up to 255 bytes of arbitrary private data from memory being sent\nto the peer leading to a loss of confidentiality. However, only applications\nthat directly call the SSL_select_next_proto function with a 0 length list of\nsupported client protocols are affected by this issue. This would normally never\nbe a valid scenario and is typically not under attacker control but may occur by\naccident in the case of a configuration or programming error in the calling\napplication.\n\nThe OpenSSL API function SSL_select_next_proto is typically used by TLS\napplications that support ALPN (Application Layer Protocol Negotiation) or NPN\n(Next Protocol Negotiation). NPN is older, was never standardised and\nis deprecated in favour of ALPN. We believe that ALPN is significantly more\nwidely deployed than NPN. The SSL_select_next_proto function accepts a list of\nprotocols from the server and a list of protocols from the client and returns\nthe first protocol that appears in the server list that also appears in the\nclient list. In the case of no overlap between the two lists it returns the\nfirst item in the client list. In either case it will signal whether an overlap\nbetween the two lists was found. In the case where SSL_select_next_proto is\ncalled with a zero length client list it fails to notice this condition and\nreturns the memory immediately following the client list pointer (and reports\nthat there was no overlap in the lists).\n\nThis function is typically called from a server side application callback for\nALPN or a client side application callback for NPN. In the case of ALPN the list\nof protocols supplied by the client is guaranteed by libssl to never be zero in\nlength. The list of server protocols comes from the application and should never\nnormally be expected to be of zero length. In this case if the\nSSL_select_next_proto function has been called as expected (with the list\nsupplied by the client passed in the client/client_len parameters), then the\napplication will not be vulnerable to this issue. If the application has\naccidentally been configured with a zero length server list, and has\naccidentally passed that zero length server list in the client/client_len\nparameters, and has additionally failed to correctly handle a \"no overlap\"\nresponse (which would normally result in a handshake failure in ALPN) then it\nwill be vulnerable to this problem.\n\nIn the case of NPN, the protocol permits the client to opportunistically select\na protocol when there is no overlap. OpenSSL returns the first client protocol\nin the no overlap case in support of this. The list of client protocols comes\nfrom the application and should never normally be expected to be of zero length.\nHowever if the SSL_select_next_proto function is accidentally called with a\nclient_len of 0 then an invalid memory pointer will be returned instead. If the\napplication uses this output as the opportunistic protocol then the loss of\nconfidentiality will occur.\n\nThis issue has been assessed as Low severity because applications are most\nlikely to be vulnerable if they are using NPN instead of ALPN - but NPN is not\nwidely used. It also requires an application configuration or programming error.\nFinally, this issue would not typically be under attacker control making active\nexploitation unlikely.\n\nThe FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.\n\nDue to the low severity of this issue we are not issuing new releases of\nOpenSSL at this time. The fix will be included in the next releases when they\nbecome available."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://www.openssl.org/policies/secpolicy.html"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-09-01T08:29:27.594Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://www.openssl.org/news/secadv/20240627.txt"
},
{
"name": "3.3.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/e86ac436f0bd54d4517745483e2315650fae7b2c"
},
{
"name": "3.2.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/99fb785a5f85315b95288921a321a935ea29a51e"
},
{
"name": "3.1.7 git commit",
"tags": [
"patch"
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"url": "https://github.com/openssl/openssl/commit/4ada436a1946cbb24db5ab4ca082b69c1bc10f37"
},
{
"name": "3.0.15 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/cf6f91f6121f4db167405db2f0de410a456f260c"
},
{
"name": "1.1.1za git commit",
"tags": [
"patch"
],
"url": "https://github.openssl.org/openssl/extended-releases/commit/b78ec0824da857223486660177d3b1f255c65d87"
},
{
"name": "1.0.2zk git commit",
"tags": [
"patch"
],
"url": "https://github.openssl.org/openssl/extended-releases/commit/9947251413065a05189a63c9b7a6c1d4e224c21c"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "SSL_select_next_proto buffer overread",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2024-5535",
"datePublished": "2024-06-27T10:30:53.118Z",
"dateReserved": "2024-05-30T15:34:36.813Z",
"dateUpdated": "2025-09-01T08:29:27.594Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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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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