CVE-2022-48757 (GCVE-0-2022-48757)
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2025-05-04 08:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b Patch
Impacted products
Vendor Product Version
Linux Linux Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
Version: 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50
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In `ptype_seq_show`, this net pointer\\nmust be checked when it is not NULL.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: corrige la fuga de informaci\u00f3n en /proc/net/ptype en un espacio de nombres de red, despu\u00e9s de crear un socket de paquetes sin vincularlo a un dispositivo, los usuarios de otros espacios de nombres de red pueden observar la nueva `packet_type` agregado por este socket de paquete leyendo el archivo `/proc/net/ptype`. Esta es una fuga de informaci\u00f3n menor ya que el socket del paquete reconoce el espacio de nombres. Agregue un puntero de red en `packet_type` para mantener el espacio de nombres de red del socket de paquete correspondiente. En `ptype_seq_show`, este puntero de red debe verificarse cuando no sea 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