CVE-2026-58014

Summary

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.

Affected Software

VendorProductVersion RangeStatus
GNOMEGLib0 < 2.88.1affected
Red HatRed Hat Enterprise Linux 100:2.80.4-12.el10_2.21 < *unaffected
Red HatRed Hat Enterprise Linux 80:2.70.1-9.el8_10 < *unaffected
Red HatRed Hat Enterprise Linux 90:2.68.4-19.el9_8.9 < *unaffected
Red HatRed Hat Enterprise Linux 90:2.68.4-19.el9_8.9 < *unaffected

Weaknesses

  • CWE-193: Off-by-one Error

Workarounds

To mitigate this vulnerability, implement input validation to sanitize untrusted key files (such as .desktop or .ini files), specifically rejecting or stripping empty values before calling g_key_file_get_locale_string_list(). Alternatively, restricting the application to only load key files from trusted sources will completely neutralize this issue.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: partial

Additional References

References