{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68255", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T13:41:40.267Z", "datePublished": "2025-12-16T14:44:58.031Z", "dateUpdated": "2026-08-05T12:10:30.152Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:10:30.152Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing\n\nThe Supported Rates IE length from an incoming Association Request frame\nwas used directly as the memcpy() length when copying into a fixed-size\n16-byte stack buffer (supportRate). A malicious station can advertise an\nIE length larger than 16 bytes, causing a stack buffer overflow.\n\nClamp ie_len to the buffer size before copying the Supported Rates IE,\nand correct the bounds check when merging Extended Supported Rates to\nprevent a second potential overflow.\n\nThis prevents kernel stack corruption triggered by malformed association\nrequests." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - A nearby station can send a crafted 802.11 Association or Reassociation Request through the rtl8723bs AP receive path; dependence on Wi-Fi radio range and channel makes this Adjacent.\nAC:L - The attacker controls the authentication exchange and malformed IE contents, with no race or uncontrollable condition required. Oversized copies deterministically corrupt the stack or trigger hardening checks.\nPR:N - Open System authentication creates the required station state without credentials. The overflow occurs before WPA/RSN credential proof or the four-way handshake.\nUI:N - Once the device is operating as an access point, receiving the malicious frames requires no victim action.\nS:U - The vulnerable driver and the compromised kernel resources belong to the same operating-system security authority.\nC:H - The attacker-controlled overwrite can reach saved return state, enabling control-flow hijacking and arbitrary kernel-memory disclosure in a successful exploit.\nI:H - The copies can write hundreds of attacker-controlled bytes beyond the stack array and reach return state, supporting kernel code execution and arbitrary modification.\nA:H - The overflow corrupts the stack canary or triggers fortify checks, causing a kernel panic or fatal fault, and an attacker can repeat it after recovery." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/staging/rtl8723bs/core/rtw_mlme_ext.c" ], "versions": [ { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "49b7806851f93fd342838c93f4f765e0cc5029b0", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "4445adedae770037078803d1ce41f9e88a1944b6", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "34620eb602aa432f090b2b784ee5c5070fb16cf9", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "61871c83259a511980ec2664964cecc69005398b", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "25411f5fcf5743131158f337c99c2bbf3f8477f5", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "e841d8ea722315b781c4fc5bf4f7670fbca88875", "status": "affected", "versionType": "git" }, { "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "6ef0e1c10455927867cac8f0ed6b49f328f8cf95", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/staging/rtl8723bs/core/rtw_mlme_ext.c" ], "versions": [ { "version": "4.12", "status": "affected" }, { "version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.62", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.12", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.1", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.12.62" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.17.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.18.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/49b7806851f93fd342838c93f4f765e0cc5029b0" }, { "url": "https://git.kernel.org/stable/c/4445adedae770037078803d1ce41f9e88a1944b6" }, { "url": "https://git.kernel.org/stable/c/d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0" }, { "url": "https://git.kernel.org/stable/c/34620eb602aa432f090b2b784ee5c5070fb16cf9" }, { "url": "https://git.kernel.org/stable/c/61871c83259a511980ec2664964cecc69005398b" }, { "url": "https://git.kernel.org/stable/c/25411f5fcf5743131158f337c99c2bbf3f8477f5" }, { "url": "https://git.kernel.org/stable/c/e841d8ea722315b781c4fc5bf4f7670fbca88875" }, { "url": "https://git.kernel.org/stable/c/6ef0e1c10455927867cac8f0ed6b49f328f8cf95" } ], "title": "staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing", "x_generator": { "engine": "bippy-1.2.0" } } } }