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Fencer Vulns
high 7.5

CVE-2023-48945 json

A stack overflow in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

published 2023-11-29 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-52972

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

A stack overflow in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

Patch / fix

  • virtuoso-opensource Debian 14, Debian 13 7.2.12+dfsg-0.2

debian advisories DEBIAN-CVE-2023-48945

  • virtuoso-opensource Ubuntu Pro 22.04 LTS 7.2.5.1+dfsg1-0.2ubuntu0.1~esm2
  • virtuoso-opensource Ubuntu Pro 24.04 LTS 7.2.5.1+dfsg1-0.8ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2023-48945

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-48945 updated cvss 7.5

virtuoso-opensource: Stack overflow due to missing type cast in ssl_needs_ins_cast() in libsrc/Wi/sqlvec.c

  • Red Hat Enterprise Linux 7 virtuoso-opensource, virtuoso-opensource-utils
    affected: no fix planned “Out of support scope”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/openlink/virtuoso-opensource/issues/1172 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.