Glib: buffer over-read in glib/giochannel.c via “g_io_channel_read_line_backend”_CVE-2026-58013

6.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Description

A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability can cause a minor information disclosure of 7 bytes or a denial of service when the buffer over-read crosses a page boundary.

Basic Information

ID CVE-2026-58013

Source redhat

Published Jun 30, 2026 at 12:57

Affected Product

Vendor Red Hat

Product Red Hat Enterprise Linux 10

CWE Classification

CWE-126

References

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    "published": "2026-06-30T12:57:34.902Z",
    "modified": "2026-06-30T12:57:34.902Z",
    "type": "cve",
    "title": "Glib: buffer over-read in glib/giochannel.c via \"g_io_channel_read_line_backend\"",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-58013\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2492248\nhttps://gitlab.gnome.org/GNOME/glib/-/issues/3925",
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