Bug 2553745 (CVE-2026-111137) - CVE-2026-111137 libsmi: libsmi: Denial of service via out-of-bounds write in smiValueAsString()
Summary: CVE-2026-111137 libsmi: libsmi: Denial of service via out-of-bounds write in ...
Keywords:
Status: NEW
Alias: CVE-2026-111137
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: 2554111
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-15 19:30 UTC by OSIDB Bzimport
Modified: 2026-10-16 13:41 UTC (History)
2 users (show)

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

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Description OSIDB Bzimport 2026-10-15 19:30:40 UTC 
libsmi through 0.5.0 contains an out-of-bounds write vulnerability in smiValueAsString() in lib/smi.c that allows attackers to overflow a fixed 1024-byte static buffer through hex rendering of OCTET STRING values. Attackers can supply a crafted MIB with an OCTET STRING DEFVAL of 512 or more octets and a leading 0x00 byte to corrupt adjacent library globals and crash smidump or other consumers.
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