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Out-of-bounds Write

CVE-2023-4911

High
7.8/10

Summary

A Buffer Overflow was discovered in the GNU C Library's dynamic loader ld.so in version 2.34 through 2.38.9000, while processing the "GLIBC_TUNABLES" environment variable. This issue could allow a local attacker to use maliciously crafted "GLIBC_TUNABLES" environment variables when launching binaries with "SUID" permission to execute code with elevated privileges.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-787 - Out-of-Bounds Write

Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.

References

Advisory Timeline

  • Published