cve-2024-50258
Vulnerability from cvelistv5
Published
2024-11-09 10:15
Modified
2024-12-19 09:36
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: fix crash when config small gso_max_size/gso_ipv4_max_size
Config a small gso_max_size/gso_ipv4_max_size will lead to an underflow
in sk_dst_gso_max_size(), which may trigger a BUG_ON crash,
because sk->sk_gso_max_size would be much bigger than device limits.
Call Trace:
tcp_write_xmit
tso_segs = tcp_init_tso_segs(skb, mss_now);
tcp_set_skb_tso_segs
tcp_skb_pcount_set
// skb->len = 524288, mss_now = 8
// u16 tso_segs = 524288/8 = 65535 -> 0
tso_segs = DIV_ROUND_UP(skb->len, mss_now)
BUG_ON(!tso_segs)
Add check for the minimum value of gso_max_size and gso_ipv4_max_size.
References
Impacted products
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/core/rtnetlink.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "e9365368b483328639c03fc730448dccd5a25b6b", "status": "affected", "version": "46e6b992c2502b094e61da6994f1363f3b7c1413", "versionType": "git" }, { "lessThan": "ac5977001eee7660c643f8e07a2de9001990b7b8", "status": "affected", "version": "46e6b992c2502b094e61da6994f1363f3b7c1413", "versionType": "git" }, { "lessThan": "e72fd1389a5364bc6aa6312ecf30bdb5891b9486", "status": "affected", "version": "46e6b992c2502b094e61da6994f1363f3b7c1413", "versionType": "git" }, { "lessThan": "9ab5cf19fb0e4680f95e506d6c544259bf1111c4", "status": "affected", "version": "46e6b992c2502b094e61da6994f1363f3b7c1413", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/core/rtnetlink.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "4.16" }, { "lessThan": "4.16", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.120", "versionType": "semver" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.60", "versionType": "semver" }, { "lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.7", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix crash when config small gso_max_size/gso_ipv4_max_size\n\nConfig a small gso_max_size/gso_ipv4_max_size will lead to an underflow\nin sk_dst_gso_max_size(), which may trigger a BUG_ON crash,\nbecause sk-\u003esk_gso_max_size would be much bigger than device limits.\nCall Trace:\ntcp_write_xmit\n tso_segs = tcp_init_tso_segs(skb, mss_now);\n tcp_set_skb_tso_segs\n tcp_skb_pcount_set\n // skb-\u003elen = 524288, mss_now = 8\n // u16 tso_segs = 524288/8 = 65535 -\u003e 0\n tso_segs = DIV_ROUND_UP(skb-\u003elen, mss_now)\n BUG_ON(!tso_segs)\nAdd check for the minimum value of gso_max_size and gso_ipv4_max_size." } ], "providerMetadata": { "dateUpdated": "2024-12-19T09:36:43.225Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b" }, { "url": "https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8" }, { "url": "https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486" }, { "url": "https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4" } ], "title": "net: fix crash when config small gso_max_size/gso_ipv4_max_size", "x_generator": { "engine": "bippy-5f407fcff5a0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-50258", "datePublished": "2024-11-09T10:15:11.311Z", "dateReserved": "2024-10-21T19:36:19.981Z", "dateUpdated": "2024-12-19T09:36:43.225Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-50258\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:11.413\",\"lastModified\":\"2024-12-14T21:15:34.100\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: fix crash when config small gso_max_size/gso_ipv4_max_size\\n\\nConfig a small gso_max_size/gso_ipv4_max_size will lead to an underflow\\nin sk_dst_gso_max_size(), which may trigger a BUG_ON crash,\\nbecause sk-\u003esk_gso_max_size would be much bigger than device limits.\\nCall Trace:\\ntcp_write_xmit\\n tso_segs = tcp_init_tso_segs(skb, mss_now);\\n tcp_set_skb_tso_segs\\n tcp_skb_pcount_set\\n // skb-\u003elen = 524288, mss_now = 8\\n // u16 tso_segs = 524288/8 = 65535 -\u003e 0\\n tso_segs = DIV_ROUND_UP(skb-\u003elen, mss_now)\\n BUG_ON(!tso_segs)\\nAdd check for the minimum value of gso_max_size and gso_ipv4_max_size.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: se corrige el fallo al configurar un gso_max_size/gso_ipv4_max_size peque\u00f1o. Configurar un gso_max_size/gso_ipv4_max_size peque\u00f1o provocar\u00e1 un desbordamiento en sk_dst_gso_max_size(), lo que puede desencadenar un fallo BUG_ON, porque sk-\u0026gt;sk_gso_max_size ser\u00eda mucho mayor que los l\u00edmites del dispositivo. Seguimiento de llamadas: tcp_write_xmit tso_segs = tcp_init_tso_segs(skb, mss_now); tcp_set_skb_tso_segs tcp_skb_pcount_set // skb-\u0026gt;len = 524288, mss_now = 8 // u16 tso_segs = 524288/8 = 65535 -\u0026gt; 0 tso_segs = DIV_ROUND_UP(skb-\u0026gt;len, mss_now) BUG_ON(!tso_segs) Agregar verificaci\u00f3n para el valor m\u00ednimo de gso_max_size y gso_ipv4_max_size.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-191\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.16\",\"versionEndIncluding\":\"6.6.60\",\"matchCriteriaId\":\"3963E830-C9E7-4330-AF4D-17893E6C5472\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndIncluding\":\"6.11.7\",\"matchCriteriaId\":\"B29C9329-20A2-46C3-8262-6601FBA189E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
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Nomenclature
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