| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_skbmod: Skip non-Ethernet packets\n\nCurrently tcf_skbmod_act() assumes that packets use Ethernet as their L2\nprotocol, which is not always the case. As an example, for CAN devices:\n\n\t$ ip link add dev vcan0 type vcan\n\t$ ip link set up vcan0\n\t$ tc qdisc add dev vcan0 root handle 1: htb\n\t$ tc filter add dev vcan0 parent 1: protocol ip prio 10 \\\n\t\tmatchall action skbmod swap mac\n\nDoing the above silently corrupts all the packets. Do not perform skbmod\nactions for non-Ethernet packets." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sched/act_skbmod.c" |
| ], |
| "versions": [ |
| { |
| "version": "86da71b57383d40993cb90baafb3735cffe5d800", |
| "lessThan": "e4fdca366806f6bab374d1a95e626a10a3854b0c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "86da71b57383d40993cb90baafb3735cffe5d800", |
| "lessThan": "a88414fb1117f2fe65fb88e45ba694e1d09d5024", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "86da71b57383d40993cb90baafb3735cffe5d800", |
| "lessThan": "071729150be9e1d1b851b70efb6d91ee9269d57b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "86da71b57383d40993cb90baafb3735cffe5d800", |
| "lessThan": "34f1e1f657fae2891b485a3b2b95fe4d2aef9f0d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "86da71b57383d40993cb90baafb3735cffe5d800", |
| "lessThan": "727d6a8b7ef3d25080fad228b2c4a1d4da5999c6", |
| "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/sched/act_skbmod.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.9", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.9", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.199", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.136", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.54", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13.6", |
| "lessThanOrEqual": "5.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.14", |
| "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": "4.9", |
| "versionEndExcluding": "4.19.199" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.4.136" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.10.54" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.13.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.9", |
| "versionEndExcluding": "5.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/e4fdca366806f6bab374d1a95e626a10a3854b0c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a88414fb1117f2fe65fb88e45ba694e1d09d5024" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/071729150be9e1d1b851b70efb6d91ee9269d57b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/34f1e1f657fae2891b485a3b2b95fe4d2aef9f0d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/727d6a8b7ef3d25080fad228b2c4a1d4da5999c6" |
| } |
| ], |
| "title": "net/sched: act_skbmod: Skip non-Ethernet packets", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47293", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
