140 lines
6.0 KiB
JSON
140 lines
6.0 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-2026-116773",
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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": "2026-10-26T21:53:35.165Z",
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"datePublished": "2026-10-27T20:23:25.559Z",
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"dateUpdated": "2026-10-30T15:17:49.289Z"
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},
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"containers": {
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"cna": {
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"title": "russh's SSH client is susceptible to unbounded allocations via EXT_INFO packets",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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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": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 4.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
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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/Eugeny/russh/security/advisories/GHSA-4p9f-7p9m-5vfg",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-4p9f-7p9m-5vfg"
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},
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{
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"name": "https://github.com/Eugeny/russh/commit/b33e93beec393e6d29eee69c1b8831736724ee75",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/Eugeny/russh/commit/b33e93beec393e6d29eee69c1b8831736724ee75"
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},
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{
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"name": "https://github.com/Eugeny/russh/releases/tag/v0.65.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/Eugeny/russh/releases/tag/v0.65.0"
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}
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],
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"affected": [
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{
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"vendor": "Eugeny",
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"product": "russh",
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"versions": [
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{
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"version": "< 0.65.0",
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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": "2026-10-27T20:23:47.305Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.65.0, the client Session::process_packet path in russh/src/client/encrypted.rs accepts repeated packets encoded with russh's private msg::EXT_INFO = 7 before authentication, while the standards-compliant EXT_INFO message number 82 does not reach the affected handler. The handle_ext_info function appends every parsed extension name to received_extensions without clearing, deduplicating, or bounding the vector. A malicious SSH server that deliberately sends private message number 7 can therefore retain an unbounded number of attacker-controlled extension names for the session lifetime, causing progressive client memory exhaustion. This issue is fixed in version 0.65.0."
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}
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],
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"source": {
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"advisory": "GHSA-4p9f-7p9m-5vfg",
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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/Eugeny/russh/security/advisories/GHSA-4p9f-7p9m-5vfg",
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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": "2026-10-30T15:17:39.066575Z",
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"id": "CVE-2026-116773",
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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": "2026-10-30T15:17:49.289Z"
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}
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}
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]
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}
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} |