CVE-2020-6750
glib: Mishandling of proxy_addr field in GSocketClient may lead to proxy being ignored
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 9, 2020
Updated · November 21, 2025
Description
GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.
Statement
As per upstream versions of glib2 before 2.60 are unaffected, therefore glib2 package shipped with Red Hat Products are not affected by this flaw.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-20 · Improper Input Validation