Buffer overflow in GNOME Glib
CVE-2020-35457
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
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.gnome.org/GNOME/glib/-/commit/63c5b62f0a984fac9a9700b12f54fe878e016a5d (Patch, Vendor Advisory)
- gitlab.gnome.org/GNOME/glib/-/issues/2197 (Exploit, Vendor Advisory)
- gitlab.gnome.org/GNOME/glib/-/releases/2.65.3 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-35457?
- CVE-2020-35457 is a high-severity vulnerability in GNOME Glib, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2020-12-14.
- How severe is CVE-2020-35457?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-35457 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.