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Fencer Vulns
medium 5.5

CVE-2023-30086 json

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiff…

published 2023-05-09 3 y ago modified 2026-07-09 4 mo ago also EUVD-2023-34519

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.4.0-5

debian advisories DEBIAN-CVE-2023-30086

  • tiff Ubuntu 18.04 LTS 4.0.9-5ubuntu0.8
  • tiff Ubuntu 20.04 LTS 4.1.0+git191117-2ubuntu0.20.04.6
  • tiff Ubuntu 22.04 LTS 4.3.0-6ubuntu0.2
  • tiff Ubuntu Pro 14.04 LTS 4.0.3-7ubuntu0.11+esm5
  • tiff Ubuntu Pro 16.04 LTS 4.0.6-1ubuntu0.8+esm7

ubuntu advisories UBUNTU-CVE-2023-30086

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

  • libtiff RHEL 9 4.4.0-7.el9
  • libtiff-tools RHEL 9 4.4.0-7.el9

red hat advisories RHSA-2023:2340

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-2023-30086 updated cvss 5.5

libtiff: Heap buffer overflow in tiffcp() at tiffcp.c

  • Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 libtiff, libtiff-tools, compat-libtiff3
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 9) libtiff 4.4.0-7.el9 Red Hat Enterprise Linux CRB (v. 9) libtiff-tools 4.4.0-7.el9
    fixed: vendor fix RHSA-2023:2340

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 ICSA-24-046-11 updated cvss 5.5

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/libtiff/libtiff/-/issues/538 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/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.