Bug 2419093 (CVE-2025-14087) - CVE-2025-14087 glib: GLib: Buffer underflow in GVariant parser leads to heap corruption
Summary: CVE-2025-14087 glib: GLib: Buffer underflow in GVariant parser leads to heap ...
Keywords:
Status: NEW
Alias: CVE-2025-14087
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2419097 2419098 2419099 2419100 2419101 2419102 2419103 2419104 2419105 2419106 2419107 2419108 2419109 2419111 2419112 2419113 2419114 2419115 2419116 2419117 2419118 2419119 2419120 2419121 2419122 2419123 2419124 2419125 2419126 2419127 2419128 2419129 2419130 2419131 2419132 2419133 2419134
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-05 08:44 UTC by OSIDB Bzimport
Modified: 2026-06-10 13:36 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2026:16004 0 None None None 2026-05-11 14:11:44 UTC
Red Hat Product Errata RHBA-2026:16104 0 None None None 2026-05-11 23:23:12 UTC
Red Hat Product Errata RHBA-2026:16106 0 None None None 2026-05-11 23:33:21 UTC
Red Hat Product Errata RHBA-2026:16107 0 None None None 2026-05-11 23:55:24 UTC
Red Hat Product Errata RHBA-2026:16199 0 None None None 2026-05-12 12:03:28 UTC
Red Hat Product Errata RHBA-2026:16338 0 None None None 2026-05-12 17:23:16 UTC
Red Hat Product Errata RHBA-2026:16340 0 None None None 2026-05-12 17:21:30 UTC
Red Hat Product Errata RHBA-2026:16343 0 None None None 2026-05-12 17:20:33 UTC
Red Hat Product Errata RHBA-2026:16690 0 None None None 2026-05-13 01:06:05 UTC
Red Hat Product Errata RHBA-2026:16691 0 None None None 2026-05-13 01:38:33 UTC
Red Hat Product Errata RHBA-2026:17054 0 None None None 2026-05-13 13:40:25 UTC
Red Hat Product Errata RHBA-2026:20150 0 None None None 2026-05-21 14:32:04 UTC
Red Hat Product Errata RHBA-2026:20545 0 None None None 2026-05-26 01:18:37 UTC
Red Hat Product Errata RHBA-2026:20618 0 None None None 2026-05-26 04:15:14 UTC
Red Hat Product Errata RHSA-2026:15953 0 None None None 2026-05-11 09:54:59 UTC
Red Hat Product Errata RHSA-2026:15969 0 None None None 2026-05-11 21:40:43 UTC
Red Hat Product Errata RHSA-2026:15971 0 None None None 2026-05-11 11:44:12 UTC
Red Hat Product Errata RHSA-2026:19148 0 None None None 2026-05-19 16:09:43 UTC
Red Hat Product Errata RHSA-2026:19361 0 None None None 2026-05-19 21:40:27 UTC
Red Hat Product Errata RHSA-2026:19452 0 None None None 2026-05-20 02:06:25 UTC
Red Hat Product Errata RHSA-2026:19457 0 None None None 2026-05-20 03:52:44 UTC
Red Hat Product Errata RHSA-2026:19459 0 None None None 2026-05-20 01:54:41 UTC
Red Hat Product Errata RHSA-2026:19460 0 None None None 2026-05-20 02:40:17 UTC
Red Hat Product Errata RHSA-2026:19523 0 None None None 2026-05-20 04:40:27 UTC
Red Hat Product Errata RHSA-2026:19524 0 None None None 2026-05-20 04:43:32 UTC
Red Hat Product Errata RHSA-2026:19565 0 None None None 2026-05-20 09:39:18 UTC
Red Hat Product Errata RHSA-2026:19566 0 None None None 2026-05-20 09:49:35 UTC
Red Hat Product Errata RHSA-2026:19567 0 None None None 2026-05-20 09:55:19 UTC

Description OSIDB Bzimport 2025-12-05 08:44:36 UTC 
A buffer-underflow vulnerability exists in GLib’s GVariant parser, specifically within bytestring_parse() and string_parse(). The parser uses signed 32-bit integers (gint) as loop indices (i and j). When extremely large strings are parsed, these counters overflow into negative values, causing the parser to write to memory before the start of the allocated buffer (str[j++]). This results in a classic out-of-bounds write condition. Because GVariant parsing is often performed on attacker-influenced data, a remote attacker can trigger heap corruption, causing a crash or potentially achieving code execution. This flaw has been confirmed by maintainers and patched upstream.
Comment 1 lmigso 2026-02-11 09:26:01 UTC 
The current state per RHEL's advisory for CVE-2025-14087 is Fix Deferred. Is there an ETA for when this will be patched, particularly as the CVE has been rated by NVD as Critical.
Comment 2 errata-xmlrpc 2026-05-11 09:54:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:15953 https://access.redhat.com/errata/RHSA-2026:15953
Comment 3 errata-xmlrpc 2026-05-11 11:44:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:15971 https://access.redhat.com/errata/RHSA-2026:15971
Comment 4 errata-xmlrpc 2026-05-11 21:40:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:15969 https://access.redhat.com/errata/RHSA-2026:15969
Comment 10 errata-xmlrpc 2026-05-19 16:09:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19148 https://access.redhat.com/errata/RHSA-2026:19148
Comment 11 errata-xmlrpc 2026-05-19 21:40:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19361 https://access.redhat.com/errata/RHSA-2026:19361
Comment 12 errata-xmlrpc 2026-05-20 01:54:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:19459 https://access.redhat.com/errata/RHSA-2026:19459
Comment 13 errata-xmlrpc 2026-05-20 02:06:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:19452 https://access.redhat.com/errata/RHSA-2026:19452
Comment 14 errata-xmlrpc 2026-05-20 02:40:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:19460 https://access.redhat.com/errata/RHSA-2026:19460
Comment 15 errata-xmlrpc 2026-05-20 03:52:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:19457 https://access.redhat.com/errata/RHSA-2026:19457
Comment 16 errata-xmlrpc 2026-05-20 04:40:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:19523 https://access.redhat.com/errata/RHSA-2026:19523
Comment 17 errata-xmlrpc 2026-05-20 04:43:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:19524 https://access.redhat.com/errata/RHSA-2026:19524
Comment 18 errata-xmlrpc 2026-05-20 09:39:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:19565 https://access.redhat.com/errata/RHSA-2026:19565
Comment 19 errata-xmlrpc 2026-05-20 09:49:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:19566 https://access.redhat.com/errata/RHSA-2026:19566
Comment 20 errata-xmlrpc 2026-05-20 09:55:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19567 https://access.redhat.com/errata/RHSA-2026:19567
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