CVE-2020-13645
In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to specify the expected server
02 Description
In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to specify the expected server
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.02% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.4% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-05-28 11:55Z6 YR AGO
- Last updated
- 2024-08-04 12:25Z2 YR AGO
- Reserved
- 2020-05-28
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- ebd70767d938da9559eab8209fc6f8f23dacb7329574e521fe1cc8637bc3fe38
05 Affected products
06 References
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/glib-networking/-/issues/135
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/balsa/-/issues/34
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200608-0004/
- lists.fedoraproject.orgFEDORA-2020-98ebbd1397https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/
- lists.fedoraproject.orgFEDORA-2020-cadbc5992fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/
- lists.fedoraproject.orgFEDORA-2020-a83c8cd358https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/
- usn.ubuntu.comUSN-4405-1https://usn.ubuntu.com/4405-1/
- security.gentoo.orgGLSA-202007-50https://security.gentoo.org/glsa/202007-50
07 Fixed in
Debian 12
- glib-networking Fixed in 2.64.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- glib-networking Fixed in 2.64.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- glib-networking Fixed in 2.64.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- glib-networking Fixed in 2.48.2-1~ubuntu16.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- glib-networking Fixed in 2.56.0-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- balsa Fixed in 2.6.0-2ubuntu0.1
- glib-networking Fixed in 2.64.2-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.