{"id":"CVE-2026-58013","title":"A flaw was found in GLib","summary":"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…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cwe":["CWE-126"],"vendor":"gnome","product":"glib","affected":["glib < 2.88.1","enterprise_linux = 6.0","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"patched":["glib 2.88.1"],"published":"2026-06-30","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:17:52.760","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-58013","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:49512","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:55440","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:57015","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:58981","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:61766","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:61783","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:63135","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:63138","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:63140","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65762","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65763","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65767","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65768","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65769","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65770","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65771","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65773","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:66018","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72394","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72395","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72399","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72470","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72475","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72476","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72502","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73859","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73909","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73929","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73930","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73959","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73960","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73961","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73962","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74458","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74459","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74460","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74461","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74462","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74463","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74674","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74677","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74678","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74679","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74681","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74683","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74685","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74687","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74688","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74771","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:75652","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:75654","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:75655","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:75657","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:75658","label":"secalert@redhat.com"},{"ur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Overview\n\nA 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.\n\n## Affected\n\n- `glib < 2.88.1`\n- `enterprise_linux = 6.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `glib 2.88.1`\n\n## Vendor advisories\n\n- **RHSA-2026:57015** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:57015)\n- **RHSA-2026:55440** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55440)\n- **RHSA-2026:61766** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61766)\n- **RHSA-2026:49512** · Red Hat · fixed in: Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:49512)\n- **RHSA-2026:61783** · Red Hat · fixed in: Red Hat Discovery 2 · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61783)\n- **RHSA-2026:58981** · Red Hat · fixed in: Red Hat Update Infrastructure 5 · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58981)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-58013.json)\n- **RHSA-2026:65762** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65762)\n- **RHSA-2026:63140** · Red Hat · fixed in: Cert Manager support for Red Hat OpenShift release 1.19 · released 2026-09-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:63140)\n- **RHSA-2026:63135** · Red Hat · fixed in: Cert Manager support for Red Hat OpenShift release 1.19 · released 2026-09-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:63135)\n- **RHSA-2026:63138** · Red Hat · fixed in: Cert Manager support for Red Hat OpenShift release 1.19 · released 2026-09-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:63138)\n- **RHSA-2026:65773** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65773)\n- **RHSA-2026:65767** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65767)\n- **RHSA-2026:65768** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65768)\n- **RHSA-2026:65770** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65770)\n- **RHSA-2026:65763** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65763)\n- **RHSA-2026:65769** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65769)\n- **RHSA-2026:65771** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65771)","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}