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6.5 Medium

CVE-2026-58010 Glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()

Description

A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds 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
glib 2.86 earliest → < 2.86.5 2.86.5
Red Hat Update Infrastructure 5 1788880581 earliest → < 1788880581 1788880581
Show the 23 other branches
Product Affected versions Fixed in
Red Hat Discovery 2 1788206196 earliest → < 1788206196 1788206196
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

References

Timeline

  1. Published
  2. Last modified

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