CVE-2018-20542

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-12-28 · updated 2026-06-17
Weakness: CWE-119

Description

There is a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader) in LIBXSMM 1.10, a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).

Affected products

Libxsmm Project Libxsmm: 1.10

References

https://bugzilla.redhat.com/show_bug.cgi?id=1652633
https://bugzilla.redhat.com/show_bug.cgi?id=1652635
https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741d
https://github.com/hfp/libxsmm/issues/287
https://bugzilla.redhat.com/show_bug.cgi?id=1652633
https://bugzilla.redhat.com/show_bug.cgi?id=1652635
https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741d
https://github.com/hfp/libxsmm/issues/287

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