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6.5 Medium

CVE-2026-58013 Glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend"

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.

Attack vector
Network
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images Versions not published
glib 2.88 earliest → < 2.88.1 2.88.1
Red Hat Update Infrastructure 5 1788880581 earliest → < 1788880581 1788880581
Red Hat Discovery 2 1788206196 earliest → < 1788206196 1788206196
Show the 23 other branches
Product Affected versions Fixed in
Cert Manager support for Red Hat OpenShift release 1.19 1788348594 earliest → < 1788348594 1788348594
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Cert Manager support for Red Hat OpenShift release 1.20 1790598593 earliest → < 1790598593 1790598593
Red Hat AI Inference Server 3.2 1790621713 earliest → < 1790621713 1790621713
Red Hat OpenShift AI 3.0 1790276974 earliest → < 1790276974 1790276974
Red Hat OpenShift AI 3.2 1790703494 earliest → < 1790703494 1790703494
Red Hat OpenShift AI 3.4 1791232048 earliest → < 1791232048 1791232048
Red Hat OpenShift AI 3.5 1790703706 earliest → < 1790703706 1790703706
Red Hat AI Inference Server 3.5 1791473614 earliest → < 1791473614 1791473614
Cert Manager support for Red Hat OpenShift release 1.17 1791970484 earliest → < 1791970484 1791970484
Cert Manager support for Red Hat OpenShift release 1.18 1791966259 earliest → < 1791966259 1791966259
Red Hat Enterprise Linux AI 3.5 1793135863 earliest → < 1793135863 1793135863
Red Hat OpenShift AI (RHOAI) Versions not published

Other CVEs of Red Hat Enterprise Linux 10

The 1455 CVEs of Red Hat Enterprise Linux 10 →
CVE-2026-123876 Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation 4.4 Medium CVE-2026-120749 Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver cannot be delivered to a monitored bus 6.2 Medium CVE-2026-123151 Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail Not rated CVE-2026-121997 Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch 8.1 High
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