CVE-2023-32665
Gvariant deserialisation does not match spec for non-normal data
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.39% · top 66% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
glib2
All versions: affected
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 8
All versions: affected
Red Hat · Red Hat Enterprise Linux 9
All versions: affected
All versions: affected
Fedora · Extra Packages for Enterprise Linux
All versions: affected
All versions: affected
All versions: affected
All versions: affected
All versions: affected
References (7)
- https://access.redhat.com/security/cve/CVE-2023-32665 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2211827 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- https://gitlab.gnome.org/GNOME/glib/-/issues/2121 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html (opens in a new tab)x_transferred
- https://security.gentoo.org/glsa/202311-18 (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20240426-0006/ (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-32665)Record last updated .