In the Linux kernel, the following vulnerability has been resolved:
tun: add missing verification for short frame
The cited commit missed to check against the validity of the frame length
in the tun_xdp_one() path, which could cause a corrupted skb to be sent
downstack. Even before the skb is transmitted, the
tun_xdp_one–>eth_type_trans() may access the Ethernet header although it
can be less than ETH_HLEN. Once transmitted, this could either cause
out-of-bound access beyond the actual length, or confuse the underlayer
with incorrect or inconsistent header length in the skb metadata.
In the alternative path, tun_get_user() already prohibits short frame which
has the length less than Ethernet header size from being transmitted for
IFF_TAP.
This is to drop any frame shorter than the Ethernet header size just like
how tun_get_user() does.
CVE: CVE-2024-41091
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/tun.c"
],
"versions": [
{
"version": "043d222f93ab",
"lessThan": "32b0aaba5dbc",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "6100e0237204",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "589382f50b4a",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "ad6b3f622ccf",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "d5ad89b7d01e",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "a9d1c27e2ee3",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "8418f55302fa",
"status": "affected",
"versionType": "git"
},
{
"version": "043d222f93ab",
"lessThan": "049584807f1d",
"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/net/tun.c"
],
"versions": [
{
"version": "4.20",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.20",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.281",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.223",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.164",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.102",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.43",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9.12",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.10.2",
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.11",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3
git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9
git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2
git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319
git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5
git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb
git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146
git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a