CVE-2024-26828

Summary

In the Linux kernel, the following vulnerability has been resolved:

cifs: fix underflow in parse_server_interfaces()

In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxfe856be475f7cf5ffcde57341d175ce9fd09434b < 7190353835b4a219abb70f90b06cdcae97f11512affected
LinuxLinuxfe856be475f7cf5ffcde57341d175ce9fd09434b < f7ff1c89fb6e9610d2b01c1821727729e6609308affected
LinuxLinuxfe856be475f7cf5ffcde57341d175ce9fd09434b < df2af9fdbc4ddde18a3371c4ca1a86596e8be301affected
LinuxLinuxfe856be475f7cf5ffcde57341d175ce9fd09434b < cffe487026be13eaf37ea28b783d9638ab147204affected
LinuxLinux4.18affected
LinuxLinux0 < 4.18unaffected
LinuxLinux6.1.79 <= 6.1.*unaffected
LinuxLinux6.6.18 <= 6.6.*unaffected
LinuxLinux6.7.6 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References