Medium severity6.5NVD Advisory· Published May 28, 2020· Updated Jun 17, 2026
CVE-2020-13645
CVE-2020-13645
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 identity. This is in contrast to its intended documented behavior, to fail the certificate verification. Applications that fail to provide the server identity, including Balsa before 2.5.11 and 2.6.x before 2.6.1, accept a TLS certificate if the certificate is valid for any host.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
36- GNOME/glib-networkingdescription
- Range: <=2.64.2
- osv-coords34 versionspkg:rpm/opensuse/balsa&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/balsa&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/glib-networking&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/glib-networking&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/glib-networking&distro=openSUSE%20Tumbleweedpkg:rpm/suse/balsa&distro=SUSE%20Package%20Hub%2015%20SP2pkg:rpm/suse/balsa&distro=SUSE%20Package%20Hub%2015%20SP3pkg:rpm/suse/glib-networking&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/glib-networking&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/glib-networking&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/glib-networking&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/glib-networking&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/glib-networking&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/glib-networking&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 2.6.1-bp153.2.3.1+ 33 more
- (no CPE)range: < 2.6.1-bp153.2.3.1
- (no CPE)range: < 2.6.1-bp153.2.3.1
- (no CPE)range: < 2.62.4-lp152.2.3.1
- (no CPE)range: < 2.62.4-3.3.1
- (no CPE)range: < 2.68.1-1.3
- (no CPE)range: < 2.6.1-bp153.2.3.1
- (no CPE)range: < 2.6.1-bp153.2.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.62.4-3.3.1
- (no CPE)range: < 2.62.4-3.3.1
- (no CPE)range: < 2.62.4-3.3.1
- (no CPE)range: < 2.62.4-3.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.54.1-3.6.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
- (no CPE)range: < 2.48.2-6.3.1
Patches
Vulnerability mechanics
References
8- gitlab.gnome.org/GNOME/balsa/-/issues/34nvdExploitVendor Advisory
- gitlab.gnome.org/GNOME/glib-networking/-/issues/135nvdExploitVendor Advisory
- security.gentoo.org/glsa/202007-50nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20200608-0004/nvdThird Party Advisory
- usn.ubuntu.com/4405-1/nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/nvd
News mentions
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