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Public proof of conceptFix available

CVE-2023-6277

Libtiff: out-of-memory in tiffopen via a craft file

A public proof of concept exists; no exploitation attested.

  • Published2023-11-24
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An out-of-memory flaw was found in libtiff. Passing a crafted tiff file to TIFFOpen() API may allow a remote attacker to cause a denial of service via a craft input with size smaller than 379 KB.

Timeline

dates in UTC
  1. 2023-11-2418:20CVE publishedCNA

Versions per branch

NVD
Libtiffversion to verify
BranchAffectedFixed in
—all versionsno fix published
Fedoraproject fedora
BranchAffectedFixed in
38.x= 38no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA6 products

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-05

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libtiffTuxCare:AlmaLinux:9.6all versions · fixed in 4.4.0-13.el9_6.2.tuxcare.els6and 3 other packages
  • libtiffopenEuler:22.03-LTS-SP2all versions · fixed in 4.3.0-36.oe2203sp2
  • libtiffopenEuler:22.03-LTS-SP1all versions · fixed in 4.3.0-36.oe2203sp1
  • libtiffopenEuler:22.03-LTSall versions · fixed in 4.3.0-36.oe2203sp2
  • libtiffopenEuler:20.03-LTS-SP3all versions · fixed in 4.3.0-22.oe1
  • libtiffopenEuler:20.03-LTS-SP1all versions · fixed in 4.3.0-22.oe1
  • libtiffAzure Linux:3all versions · fixed in 4.6.0-3
  • libtiffAzure Linux:2all versions · fixed in 4.6.0-3

27 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-6277 Red Hat Product Security21 known affected

    libtiff: Out-of-memory in TIFFOpen via a craft file

    libtiff as a component of Red Hat Enterprise Linux 6 · libtiff-devel as a component of Red Hat Enterprise Linux 6 · libtiff-static as a component of Red Hat Enterprise Linux 6 · +18 more

Full record on NVD

Fix

  1. No fix planned, says the vendor Red Hat Product Security CVE-2023-6277 · 11 productsOut of support scope
  2. No fix planned, says the vendor Red Hat Product Security CVE-2023-6277 · 10 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2023-11-24
Last Modified
2026-11-05
NVD status
Modified
GitHub Advisory
GHSA-fq8g-55cp-756j

Frequently asked questions

What is CVE-2023-6277?

An out-of-memory flaw was found in libtiff. Passing a crafted tiff file to TIFFOpen() API may allow a remote attacker to cause a denial of service via a craft input with size smaller than 379 KB.

Is CVE-2023-6277 actively exploited?

A proof-of-concept exploit exists for CVE-2023-6277, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-6277?

CVE-2023-6277 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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Sources for this record