Medium severity · published Sep 14, 2023
CVE-2023-32665
Gvariant deserialisation does not match spec for non-normal data
5.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EP
Extra Packages for Enterprise Linux · Fedora
All versions, or not specified · source: vendor
FE
Fedora · Fedora
All versions, or not specified · source: vendor
F3
Fedora 37 · Fedora
All versions, or not specified · source: vendor
F3
Fedora 38 · Fedora
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
GL
glib2 ·
All versions, or not specified · source: vendor
GL
Glib · Gnome
before 2.74.4 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32665
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-32665
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-32665
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2211827
Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/issues/2121
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html
security.gentoo.org
https://security.gentoo.org/glsa/202311-18
security.netapp.com
https://security.netapp.com/advisory/ntap-20240426-0006/
More from glib2
7.5
CVE-2023-29499
Gvariant offset table entry size is not checked in is_normal()
5.5
CVE-2023-32611
G_variant_byteswap() can take a long time with some non-normal inputs