CVE-2023-6277— Libtiff: out-of-memory in tiffopen via a craft file

Quick assessment

Affected

Red Hat Red Hat Enterprise Linux 6

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibTIFF是一个读写TIFF（标签图像文件格式）文件的库。该库包含一些处理TIFF文件的命令行工具。 LibTIFF 存在安全漏洞，该漏洞源于内存不足，将精心设计的tiff文件传递给TIFFOpen() API可能会允许远程攻击者通过大小小于379 KB的手工输入造成拒绝服务。

CVSS 6.5 · Medium EPSS 1.82% · P79 Updated Feb 26, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

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I. Basic Information for CVE-2023-6277

Vulnerability Information

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Vulnerability Title

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

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

未加控制的资源消耗(资源穷尽)

Source: CVE Program / CVE List V5

Vulnerability Title

LibTIFF 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Red Hat	Red Hat Enterprise Linux 6	-	`cpe:/o:redhat:enterprise_linux:6`
Red Hat	Red Hat Enterprise Linux 7	-	`cpe:/o:redhat:enterprise_linux:7`
Red Hat	Red Hat Enterprise Linux 7	-	`cpe:/o:redhat:enterprise_linux:7`
Red Hat	Red Hat Enterprise Linux 8	-	`cpe:/o:redhat:enterprise_linux:8`
Red Hat	Red Hat Enterprise Linux 8	-	`cpe:/o:redhat:enterprise_linux:8`
Red Hat	Red Hat Enterprise Linux 9	-	`cpe:/o:redhat:enterprise_linux:9`