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Vulnerability · Published Aug 17, 2024 · Assigned by Linux

CVE-2024-43838bpf: fix overflow check in adjust_jmp_off()

Medium 5.5

In plain English

A medium-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 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 92.2% 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: bpf: fix overflow check in adjust_jmp_off() adjust_jmp_off() incorrectly used the insn->imm field for all overflow check, which is incorrect as that should only be done or the BPF_JMP32 | BPF_JA case, not the general jump instruction case. Fix it by using insn->off for overflow check in the general case.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.10.3-1DEBIAN-CVE-2024-43838
Debian:14linux6.10.3-1DEBIAN-CVE-2024-43838
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-43838
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-43838

Affected products (as reported)

VendorProductVersions
Linux Linux 5337ac4c9b807bc46baa0713121a0afa8beacd70 – before 345652866a8869825a2a582ee5a28d75141f184a5337ac4c9b807bc46baa0713121a0afa8beacd70 – before 4a04b4f0de59dd5c621e78f15803ee0b0544eeb8e47a1a791d32bd6c8f71d23c84294f2c053553a16.9.8 – before 6.10
Linux Linux 6.10

References