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4 vulnerabilities found for libpcap by The Tcpdump Group
CVE-2025-11964 (GCVE-0-2025-11964)
Vulnerability from nvd
Published
2025-12-31 00:58
Modified
2025-12-31 00:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Tcpdump Group | libpcap |
Version: 1.10.0 ≤ |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libpcap",
"programFiles": [
"fmtutils.c"
],
"programRoutines": [
{
"name": "utf_16le_to_utf_8_truncated()"
}
],
"repo": "https://github.com/the-tcpdump-group/libpcap/",
"vendor": "The Tcpdump Group",
"versions": [
{
"lessThan": "1.10.6",
"status": "affected",
"version": "1.10.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Aniruddhan Murali"
},
{
"lang": "en",
"type": "reporter",
"value": "Noble Saji Mathews"
},
{
"lang": "en",
"type": "reporter",
"value": "Mahmoud Alfadel"
},
{
"lang": "en",
"type": "reporter",
"value": "Mei Nagappan"
},
{
"lang": "en",
"type": "reporter",
"value": "Meng Xu"
}
],
"descriptions": [
{
"lang": "en",
"value": "On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-31T00:58:19.026Z",
"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"shortName": "Tcpdump"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69"
}
],
"solutions": [
{
"lang": "en",
"value": "libpcap 1.10.6 includes a fix for this bug."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "OOBW in utf_16le_to_utf_8_truncated() in libpcap"
}
},
"cveMetadata": {
"assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"assignerShortName": "Tcpdump",
"cveId": "CVE-2025-11964",
"datePublished": "2025-12-31T00:58:19.026Z",
"dateReserved": "2025-10-20T14:43:15.180Z",
"dateUpdated": "2025-12-31T00:58:19.026Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-11961 (GCVE-0-2025-11961)
Vulnerability from nvd
Published
2025-12-31 00:56
Modified
2025-12-31 00:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Tcpdump Group | libpcap |
Version: 0 ≤ |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libpcap",
"programFiles": [
"nametoaddr.c"
],
"programRoutines": [
{
"name": "pcap_ether_aton()"
}
],
"repo": "https://github.com/the-tcpdump-group/libpcap/",
"vendor": "The Tcpdump Group",
"versions": [
{
"lessThan": "1.10.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Jin Wei"
},
{
"lang": "en",
"type": "reporter",
"value": "Kunwei Qian"
},
{
"lang": "en",
"type": "reporter",
"value": "Ping Chen"
}
],
"descriptions": [
{
"lang": "en",
"value": "pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-126",
"description": "CWE-126 Buffer Over-read",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122 Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-31T00:56:16.310Z",
"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"shortName": "Tcpdump"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02"
}
],
"solutions": [
{
"lang": "en",
"value": "In libpcap 1.10.6 the function has been reimplemented to apply a stricter input validation and to fail safely if the input is invalid."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "OOBR and OOBW in pcap_ether_aton() in libpcap"
}
},
"cveMetadata": {
"assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"assignerShortName": "Tcpdump",
"cveId": "CVE-2025-11961",
"datePublished": "2025-12-31T00:56:16.310Z",
"dateReserved": "2025-10-20T13:42:36.190Z",
"dateUpdated": "2025-12-31T00:56:16.310Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-11964 (GCVE-0-2025-11964)
Vulnerability from cvelistv5
Published
2025-12-31 00:58
Modified
2025-12-31 00:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Tcpdump Group | libpcap |
Version: 1.10.0 ≤ |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libpcap",
"programFiles": [
"fmtutils.c"
],
"programRoutines": [
{
"name": "utf_16le_to_utf_8_truncated()"
}
],
"repo": "https://github.com/the-tcpdump-group/libpcap/",
"vendor": "The Tcpdump Group",
"versions": [
{
"lessThan": "1.10.6",
"status": "affected",
"version": "1.10.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Aniruddhan Murali"
},
{
"lang": "en",
"type": "reporter",
"value": "Noble Saji Mathews"
},
{
"lang": "en",
"type": "reporter",
"value": "Mahmoud Alfadel"
},
{
"lang": "en",
"type": "reporter",
"value": "Mei Nagappan"
},
{
"lang": "en",
"type": "reporter",
"value": "Meng Xu"
}
],
"descriptions": [
{
"lang": "en",
"value": "On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-31T00:58:19.026Z",
"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"shortName": "Tcpdump"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69"
}
],
"solutions": [
{
"lang": "en",
"value": "libpcap 1.10.6 includes a fix for this bug."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "OOBW in utf_16le_to_utf_8_truncated() in libpcap"
}
},
"cveMetadata": {
"assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"assignerShortName": "Tcpdump",
"cveId": "CVE-2025-11964",
"datePublished": "2025-12-31T00:58:19.026Z",
"dateReserved": "2025-10-20T14:43:15.180Z",
"dateUpdated": "2025-12-31T00:58:19.026Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-11961 (GCVE-0-2025-11961)
Vulnerability from cvelistv5
Published
2025-12-31 00:56
Modified
2025-12-31 00:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Tcpdump Group | libpcap |
Version: 0 ≤ |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libpcap",
"programFiles": [
"nametoaddr.c"
],
"programRoutines": [
{
"name": "pcap_ether_aton()"
}
],
"repo": "https://github.com/the-tcpdump-group/libpcap/",
"vendor": "The Tcpdump Group",
"versions": [
{
"lessThan": "1.10.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Jin Wei"
},
{
"lang": "en",
"type": "reporter",
"value": "Kunwei Qian"
},
{
"lang": "en",
"type": "reporter",
"value": "Ping Chen"
}
],
"descriptions": [
{
"lang": "en",
"value": "pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-126",
"description": "CWE-126 Buffer Over-read",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122 Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-31T00:56:16.310Z",
"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"shortName": "Tcpdump"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02"
}
],
"solutions": [
{
"lang": "en",
"value": "In libpcap 1.10.6 the function has been reimplemented to apply a stricter input validation and to fail safely if the input is invalid."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "OOBR and OOBW in pcap_ether_aton() in libpcap"
}
},
"cveMetadata": {
"assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
"assignerShortName": "Tcpdump",
"cveId": "CVE-2025-11961",
"datePublished": "2025-12-31T00:56:16.310Z",
"dateReserved": "2025-10-20T13:42:36.190Z",
"dateUpdated": "2025-12-31T00:56:16.310Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}