{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49948", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.382Z", "datePublished": "2025-06-18T11:00:12.364Z", "dateUpdated": "2025-06-18T11:00:12.364Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-06-18T11:00:12.364Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvt: Clear selection before changing the font\n\nWhen changing the console font with ioctl(KDFONTOP) the new font size\ncan be bigger than the previous font. A previous selection may thus now\nbe outside of the new screen size and thus trigger out-of-bounds\naccesses to graphics memory if the selection is removed in\nvc_do_resize().\n\nPrevent such out-of-memory accesses by dropping the selection before the\nvarious con_font_set() console handlers are called."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/tty/vt/vt.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "c555cf04684fde39b5b0dd9fd80730030ee10c4a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e9ba4611ddf676194385506222cce7b0844e708e", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f74b4a41c5d7c9522469917e3072e55d435efd9e", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1cf1930369c9dc428d827b60260c53271bff3285", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "989201bb8c00b222235aff04e6200230d29dc7bb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "2535431ae967ad17585513649625fea7db28d4db", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "c904fe03c4bd1f356a58797d39e2a5d0ca15cefc", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "566f9c9f89337792070b5a6062dff448b3e7977f", "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/tty/vt/vt.c"], "versions": [{"version": "4.9.328", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.293", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.258", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.213", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.142", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.66", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.8", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.9.328"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.14.293"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.19.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.213"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.66"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.19.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a"}, {"url": "https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e"}, {"url": "https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e"}, {"url": "https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285"}, {"url": "https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb"}, {"url": "https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db"}, {"url": "https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc"}, {"url": "https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f"}], "title": "vt: Clear selection before changing the font", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvt: Clear selection before changing the font\n\nWhen changing the console font with ioctl(KDFONTOP) the new font size\ncan be bigger than the previous font. A previous selection may thus now\nbe outside of the new screen size and thus trigger out-of-bounds\naccesses to graphics memory if the selection is removed in\nvc_do_resize().\n\nPrevent such out-of-memory accesses by dropping the selection before the\nvarious con_font_set() console handlers are called."}], "id": "CVE-2022-49948", "lastModified": "2025-06-18T13:46:52.973", "metrics": {}, "published": "2025-06-18T11:15:21.827", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: vt: Clear selection before changing the font", "id": "2373593", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373593"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvt: Clear selection before changing the font\nWhen changing the console font with ioctl(KDFONTOP) the new font size\ncan be bigger than the previous font. A previous selection may thus now\nbe outside of the new screen size and thus trigger out-of-bounds\naccesses to graphics memory if the selection is removed in\nvc_do_resize().\nPrevent such out-of-memory accesses by dropping the selection before the\nvarious con_font_set() console handlers are called."], "name": "CVE-2022-49948", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49948\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49948\nhttps://lore.kernel.org/linux-cve-announce/2025061809-CVE-2022-49948-e2a9@gregkh/T"], "threat_severity": "Moderate"}