| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nl2tp: pass correct message length to ip6_append_data\n\nl2tp_ip6_sendmsg needs to avoid accounting for the transport header\ntwice when splicing more data into an already partially-occupied skbuff.\n\nTo manage this, we check whether the skbuff contains data using\nskb_queue_empty when deciding how much data to append using\nip6_append_data.\n\nHowever, the code which performed the calculation was incorrect:\n\n ulen = len + skb_queue_empty(&sk->sk_write_queue) ? transhdrlen : 0;\n\n...due to C operator precedence, this ends up setting ulen to\ntranshdrlen for messages with a non-zero length, which results in\ncorrupted packets on the wire.\n\nAdd parentheses to correct the calculation in line with the original\nintent." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/l2tp/l2tp_ip6.c" |
| ], |
| "versions": [ |
| { |
| "version": "559d697c5d072593d22b3e0bd8b8081108aeaf59", |
| "lessThan": "4c3ce64bc9d36ca9164dd6c77ff144c121011aae", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1fc793d68d50dee4782ef2e808913d5dd880bcc6", |
| "lessThan": "c1d3a84a67db910ce28a871273c992c3d7f9efb5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "96b2e1090397217839fcd6c9b6d8f5d439e705ed", |
| "lessThan": "dcb4d14268595065c85dc5528056713928e17243", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "cd1189956393bf850b2e275e37411855d3bd86bb", |
| "lessThan": "0da15a70395182ee8cb75716baf00dddc0bea38d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "f6a7182179c0ed788e3755ee2ed18c888ddcc33f", |
| "lessThan": "13cd1daeea848614e585b2c6ecc11ca9c8ab2500", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9d4c75800f61e5d75c1659ba201b6c0c7ead3070", |
| "lessThan": "804bd8650a3a2bf3432375f8c97d5049d845ce56", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9d4c75800f61e5d75c1659ba201b6c0c7ead3070", |
| "lessThan": "83340c66b498e49353530e41542500fc8a4782d6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9d4c75800f61e5d75c1659ba201b6c0c7ead3070", |
| "lessThan": "359e54a93ab43d32ee1bff3c2f9f10cb9f6b6e79", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7626b9fed53092aa2147978070e610ecb61af844", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fe80658c08e3001c80c5533cd41abfbb0e0e28fd", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/l2tp/l2tp_ip6.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.6", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.6", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.308", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.270", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.211", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.150", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.80", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.19", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.7.7", |
| "lessThanOrEqual": "6.7.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8", |
| "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": "4.19.296", |
| "versionEndExcluding": "4.19.308" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.4.258", |
| "versionEndExcluding": "5.4.270" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10.198", |
| "versionEndExcluding": "5.10.211" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.135", |
| "versionEndExcluding": "5.15.150" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1.57", |
| "versionEndExcluding": "6.1.80" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6", |
| "versionEndExcluding": "6.6.19" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6", |
| "versionEndExcluding": "6.7.7" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6", |
| "versionEndExcluding": "6.8" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.14.327" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.5.7" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/4c3ce64bc9d36ca9164dd6c77ff144c121011aae" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c1d3a84a67db910ce28a871273c992c3d7f9efb5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/dcb4d14268595065c85dc5528056713928e17243" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0da15a70395182ee8cb75716baf00dddc0bea38d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/13cd1daeea848614e585b2c6ecc11ca9c8ab2500" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/804bd8650a3a2bf3432375f8c97d5049d845ce56" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/83340c66b498e49353530e41542500fc8a4782d6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/359e54a93ab43d32ee1bff3c2f9f10cb9f6b6e79" |
| } |
| ], |
| "title": "l2tp: pass correct message length to ip6_append_data", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26752", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
