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Vulnerability · Published Apr 3, 2024 · Assigned by Linux

CVE-2024-26777fbdev: sis: Error out if pixclock equals zero

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 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 83.0% 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: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2024-26777
Debian:13linux6.7.7-1DEBIAN-CVE-2024-26777
Debian:14linux6.7.7-1DEBIAN-CVE-2024-26777
Ubuntu:22.04:LTSlinux5.15.0-112.122UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux5.15.0-112.122USN-6820-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-aws5.15.0-1063.69UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-aws5.15.0-1063.69USN-6821-3
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure5.15.0-1066.75UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure5.15.0-1066.75USN-6821-4
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1065.74.1USN-6821-4
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1067.76.1UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gcp5.15.0-1062.70UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gcp5.15.0-1062.70USN-6820-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gke5.15.0-1060.66UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-gke5.15.0-1060.66USN-6821-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1046.53USN-6821-2
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1046.53UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-ibm5.15.0-1056.59USN-6821-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1056.59UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1058.64UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1058.64USN-6821-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1060.65UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-kvm5.15.0-1060.65USN-6821-2
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-110.120USN-6820-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-110.120UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1058.59UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1058.59USN-6820-2
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oracle5.15.0-1061.67UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-oracle5.15.0-1061.67USN-6821-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2024-26777
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34USN-6820-1

Affected products (as reported)

VendorProductVersions
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 84246c35ca34207114055a87552a1c4289c8fd7e1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 6db07619d173765bd8622d63809cbfe361f042071da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before cd36da760bd1f78c63c7078407baf01dd724f3131da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before df6e2088c6f4cad539cf67cba2d6764461e798d11da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before f329523f6a65c3bbce913ad35473d83a319d5d991da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 99f1abc34a6dde248d2219d64aa493c76bbdd9eb1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 1d11dd3ea5d039c7da089f309f39c4cd363b924b1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before e421946be7d9bf545147bea8419ef8239cb7ca52
Linux Linux 2.6.12

References