CVE-2023-6277

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

MEDIUM
6.5
CVSS Score
Published: November 24, 2023 at 06:20 PM UTC
Updated: June 17, 2026 at 06:50 AM UTC
3 products affected across 3 vendorsFedoraLibTIFFEnterprise Linux

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
redhat-enterprise-linux (environment)
Vendor states this is fixed in 6 (unknown)
Vendor states this is fixed in 7 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (23)

VDB Entryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6277
Issue Trackingx_refsource_REDHATPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2251311
ExploitIssue TrackingPatchVendor Advisory
https://gitlab.com/libtiff/libtiff/-/issues/614
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2024/Jul/16
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2024/Jul/17
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2024/Jul/18
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2024/Jul/19

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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