157 lines
6.8 KiB
JSON
157 lines
6.8 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-2026-62958",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-07-14T22:32:17.732Z",
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"datePublished": "2026-10-30T20:44:21.663Z",
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"dateUpdated": "2026-11-02T14:55:00.894Z"
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},
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"containers": {
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"cna": {
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"title": "libriscv: Out of bounds read vuln in the ELF parser (Denial of service)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-20",
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"lang": "en",
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"description": "CWE-20: Improper Input Validation",
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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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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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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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"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": 7.9,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/libriscv/libriscv/security/advisories/GHSA-gm4g-6c78-gr3w",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/libriscv/libriscv/security/advisories/GHSA-gm4g-6c78-gr3w"
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},
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{
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"name": "https://github.com/libriscv/libriscv/commit/61ef9ca82c8876dd80b33780893ba512af780e93",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libriscv/libriscv/commit/61ef9ca82c8876dd80b33780893ba512af780e93"
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},
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{
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"name": "https://github.com/libriscv/libriscv/commit/7bd1c189f9f9d54368cde096b07b194ad680f9fa",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libriscv/libriscv/commit/7bd1c189f9f9d54368cde096b07b194ad680f9fa"
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},
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{
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"name": "https://github.com/libriscv/libriscv/releases/tag/v1.18",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libriscv/libriscv/releases/tag/v1.18"
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}
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],
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"affected": [
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{
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"vendor": "libriscv",
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"product": "libriscv",
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"versions": [
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{
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"version": "< 1.18",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-10-30T20:44:21.663Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "libriscv is a RISC-V sandbox and emulator. Prior to 1.18, a crafted ELF binary can cause out-of-bounds reads in the host emulator. `Memory<W>::binary_loader` checks `PT_LOAD` program-header bounds, but `Memory<W>::serialize_execute_segment` trusts section-header `sh_offset` and `sh_size` when locating `.text` without verifying the file range against `m_binary.size()`; `Memory<W>::lookup()` has a similar section-table problem. Malformed `.text` or `.symtab` offsets can therefore bypass the program-header checks and point outside the binary buffer, crashing rvlinux. With suitable memory layout or integer overflow, out-of-buffer host heap memory may instead be mapped into the guest by `create_execute_segment()`, potentially exposing host memory. The reported reproducer demonstrates a host SIGSEGV, while memory disclosure through grooming is described as possible rather than demonstrated. This issue is fixed in version 1.18."
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}
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],
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"source": {
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"advisory": "GHSA-gm4g-6c78-gr3w",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/libriscv/libriscv/security/advisories/GHSA-gm4g-6c78-gr3w",
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"tags": [
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"exploit"
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]
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}
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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": "2026-11-02T14:54:34.516881Z",
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"id": "CVE-2026-62958",
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"options": [
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{
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"Exploitation": "poc"
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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": "2026-11-02T14:55:00.894Z"
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}
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}
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]
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}
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} |