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Vulnerability · Published Jun 20, 2024 · Assigned by Linux

CVE-2022-48711tipc: improve size validations for received domain records

Critical 9.8

In plain English

A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 56.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: tipc: improve size validations for received domain records The function tipc_mon_rcv() allows a node to receive and process domain_record structs from peer nodes to track their views of the network topology. This patch verifies that the number of members in a received domain record does not exceed the limit defined by MAX_MON_DOMAIN, something that may otherwise lead to a stack overflow. tipc_mon_rcv() is called from the function tipc_link_proto_rcv(), where we are reading a 32 bit message data length field into a uint16. To avert any risk of bit overflow, we add an extra sanity check for this in that function. We cannot see that happen with the current code, but future designers being unaware of this risk, may introduce it by allowing delivery of very large (> 64k) sk buffers from the bearer layer. This potential problem was identified by Eric Dumazet. This fixes CVE-2022-0435

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.16.10-1DEBIAN-CVE-2022-48711
Debian:13linux5.16.10-1DEBIAN-CVE-2022-48711
Debian:14linux5.16.10-1DEBIAN-CVE-2022-48711
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-48711
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-48711
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-48711

Affected products (as reported)

VendorProductVersions
Linux Linux 35c55c9877f8de0ab129fa1a309271d0ecc868b9 – before 175db196e45d6f0e6047eccd09c8ba55465eb13135c55c9877f8de0ab129fa1a309271d0ecc868b9 – before fde4ddeadd099bf9fbb9ccbee8e1b5c20d530a2d35c55c9877f8de0ab129fa1a309271d0ecc868b9 – before f1af11edd08dd8376f7a84487cbb0ea8203e3a1d35c55c9877f8de0ab129fa1a309271d0ecc868b9 – before d692e3406e052dbf9f6d9da0cba36cb76327252935c55c9877f8de0ab129fa1a309271d0ecc868b9 – before 3c7e5943553594f68bbc070683db6bb6f6e9e78e35c55c9877f8de0ab129fa1a309271d0ecc868b9 – before 1f1788616157b0222b0c2153828b475d95e374a735c55c9877f8de0ab129fa1a309271d0ecc868b9 – before 59ff7514f8c56f166aadca49bcecfa028e0ad50f35c55c9877f8de0ab129fa1a309271d0ecc868b9 – before 9aa422ad326634b76309e8ff342c246800621216
Linux Linux 4.8

References