CVE catalog

CVE-2018-20543

libxsmm: CVE-2018-20543

Severity: Low
Published: Dec 28, 2018, 4:29:04 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.05% · Oct 25, 2026

There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libxsmm	sid	`1.17-4`	vulnerable
Debian	libxsmm	trixie	`1.17-4`	vulnerable
Debian	libxsmm	bookworm	`1.17-2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libxsmm	source	sid	`(unfixed)`	unimportant	Not reported	[917573]
Debian	libxsmm	source	trixie	`(unfixed)`	unimportant	Not reported	[917573]
Debian	libxsmm	source	bookworm	`(unfixed)`	unimportant	Not reported	[917573]

[Debian bug #917573]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libxsmm-dev]Affected
Source package: [libxsmm]
Details (1)
- 1.17-2 · amd64 · bookworm
  Affected
  dsa · libxsmm · debian · bookworm; dsa · libxsmm · debian · 12

[Debian 13 (Trixie)]

[libxsmm-dev]Affected
Source package: [libxsmm]
Details (1)
- 1.17-4 · amd64 · trixie
  Affected
  dsa · libxsmm · debian · 13

Observed: Oct 23, 2026, 5:36:04 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]