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TI-2020-17986 Aliases CVE-2020-35457GHSA-2fcx-98cm-5x99

GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds…

Priority LOW 35CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entries. NOTE: the vendor's position is "Realistically this is not a security issue. The standard pattern is for callers to provide a static list of option entries in a fixed number of calls to g_option_group_add_entries()." The researcher states that this pattern is undocumented

Why it matters now

EPSS 0.00574 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*before 2.65.3VulnerableGNOME
  • cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:* Versions before 2.65.3 Vulnerable ·GNOME

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-35457
  2. 2026-10-03 Alias added: GHSA-2fcx-98cm-5x99

References

Exploit 1

Patch 1

Advisory 1

  • TI-2026-41775 Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" CVSS 3.1HIGH 8.6
  • TI-2026-41772 Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime CVSS 3.1HIGH 7.5
  • TI-2025-03596 Glib: glib crash after long command line CVSS 3.1HIGH 7.5
  • TI-2023-15942 Gvariant deserialisation does not match spec for non-normal data CVSS 3.1MEDIUM 5.5
  • TI-2024-35203 gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant… CVSS 3.1CRITICAL 9.8
  • TI-2018-11777 In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference. CVSS 3.0CRITICAL 9.8
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences