115 lines
5.0 KiB
JSON
115 lines
5.0 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-2026-64669",
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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": "2026-07-20T17:12:12.891Z",
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"datePublished": "2026-11-11T03:52:43.930Z",
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"dateUpdated": "2026-11-11T03:52:43.930Z"
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},
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"containers": {
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"cna": {
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"title": "pam_usb: deny_remote bypassed by compressed IPv6 addresses in pusb_tmux_has_remote_clients",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-285",
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"lang": "en",
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"description": "CWE-285: Improper Authorization",
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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-693",
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"lang": "en",
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"description": "CWE-693: Protection Mechanism Failure",
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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": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 7.4,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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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/mcdope/pam_usb/security/advisories/GHSA-gc4c-v52c-2v34",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-gc4c-v52c-2v34"
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},
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{
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"name": "https://github.com/mcdope/pam_usb/pull/423",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mcdope/pam_usb/pull/423"
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},
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{
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"name": "https://github.com/mcdope/pam_usb/commit/a62513f3da871d6576d751de3482eb80b9ac79f3",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mcdope/pam_usb/commit/a62513f3da871d6576d751de3482eb80b9ac79f3"
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},
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{
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"name": "https://github.com/mcdope/pam_usb/releases/tag/0.9.3",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mcdope/pam_usb/releases/tag/0.9.3"
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}
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],
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"affected": [
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{
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"vendor": "mcdope",
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"product": "pam_usb",
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"versions": [
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{
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"version": ">= 0.8.0, < 0.9.3",
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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": "2026-11-11T03:52:43.930Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "pam_usb provides hardware authentication for Linux using removable media. From version 0.8.0 to before version 0.9.3, the deny_remote feature in pam_usb uses /usr/bin/w -i to detect whether the authenticating user has an active remote tmux session. In pusb_tmux_has_remote_clients() (src/tmux.c), the IPv6 detection regex required exactly four explicit colon-separated groups of 1-4 hex digits (e.g. 2001:0db8:85a3:0000). Any IPv6 address in compressed notation — including loopback (::1), link-local (fe80::1), and global unicast addresses (2001:db8::1) — did not match this pattern. As a result the remote-client check silently returned \"no remote clients\" even when a remote tmux client was connected from such an address. This issue has been patched in version 0.9.3."
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}
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],
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"source": {
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"advisory": "GHSA-gc4c-v52c-2v34",
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"discovery": "UNKNOWN"
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}
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}
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}
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} |