186 lines
7.0 KiB
JSON
186 lines
7.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-31912",
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"assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
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"state": "PUBLISHED",
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"assignerShortName": "Tcpdump",
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"dateReserved": "2026-03-10T09:30:50.972Z",
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"datePublished": "2026-09-05T18:49:41.619Z",
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"dateUpdated": "2026-09-08T18:21:58.216Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"BPF interpreter"
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],
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"product": "libpcap",
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"programFiles": [
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"bpf_filter.c"
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],
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"programRoutines": [
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{
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"name": "pcapint_filter_with_aux_data()"
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}
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],
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"repo": "https://github.com/the-tcpdump-group/libpcap/",
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"vendor": "The Tcpdump Group",
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"versions": [
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{
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"lessThan": "1.10.7",
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"status": "affected",
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"version": "0",
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"versionType": "semver"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"value": "The problem is specific to applications that use pcap_offline_filter() or bpf_filter() with an externally-supplied compiled filter program without validating the program first."
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Denis Ovsienko"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures."
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}
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],
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"exploits": [
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{
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"lang": "en",
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"value": "A functional exploit exists."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-1285",
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"description": "CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input",
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"lang": "en",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-823",
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"description": "CWE-823 Use of Out-of-range Pointer Offset",
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"lang": "en",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-125",
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"description": "CWE-125 Out-of-bounds Read",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896",
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"shortName": "Tcpdump",
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"dateUpdated": "2026-09-05T18:49:41.619Z"
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},
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"references": [
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/the-tcpdump-group/libpcap/commit/d3f358d3cffbe1ecb94d5284b3e81f052a0adcb9"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade to libpcap 1.10.7 and migrate from bpf_filter() to pcap_offline_filter()."
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}
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],
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"source": {
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"discovery": "INTERNAL"
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},
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"title": "OOBR in libpcap before 1.10.7",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-08T18:21:42.914503Z",
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"id": "CVE-2026-31912",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-08T18:21:58.216Z"
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}
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}
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]
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}
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} |