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Description

A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).

PUBLISHED Reserved 2026-01-15 | Published 2026-01-21 | Updated 2026-01-21 | Assigner redhat




LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

Integer Overflow or Wraparound

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Timeline

2026-01-15:Reported to Red Hat.
2026-01-15:Made public.

Credits

Red Hat would like to thank Codean Labs for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-0988 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2429886 (RHBZ#2429886) issue-tracking

cve.org (CVE-2026-0988)

nvd.nist.gov (CVE-2026-0988)

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