Red Hat Security Advisory: compat-libtiff3 security update
A security vulnerability (CVE-2026-4775) exists in the compat-libtiff3 package used by Red Hat Enterprise Linux 8. It involves a signed integer overflow in TIFF file processing that could lead to arbitrary code execution or denial of service. This vulnerability affects the older libtiff3 library, which is intended only for use when the current libtiff version cannot be used. Red Hat has issued an important security advisory and released updated packages to address this issue. The vulnerability is rated with high severity by Red Hat Product Security. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The compat-libtiff3 package in Red Hat Enterprise Linux 8 contains a vulnerability identified as CVE-2026-4775, caused by a signed integer overflow during TIFF file processing. This flaw can be exploited to cause arbitrary code execution or denial of service. The issue affects the older libtiff3 library version, which is recommended only when the current libtiff version is not usable. Red Hat has released security updates for multiple architectures and variants of Red Hat Enterprise Linux 8 to fix this vulnerability. The advisory classifies the impact as important and high severity, though no CVSS score is provided. The vendor advisory includes detailed package updates and instructions for remediation.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service on affected systems processing malicious TIFF files. This could compromise system integrity or availability. The vulnerability affects Red Hat Enterprise Linux 8 systems using the compat-libtiff3 package. No known exploits are currently reported in the wild.
Mitigation Recommendations
Red Hat has released updated compat-libtiff3 packages that address CVE-2026-4775. Users of affected Red Hat Enterprise Linux 8 versions should apply these official updates promptly. Detailed instructions and updated packages are available in the Red Hat advisory RHSA-2026:20585 at https://access.redhat.com/errata/RHSA-2026:20585 and https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation actions are indicated by the vendor advisory.
Red Hat Security Advisory: compat-libtiff3 security update
Description
A security vulnerability (CVE-2026-4775) exists in the compat-libtiff3 package used by Red Hat Enterprise Linux 8. It involves a signed integer overflow in TIFF file processing that could lead to arbitrary code execution or denial of service. This vulnerability affects the older libtiff3 library, which is intended only for use when the current libtiff version cannot be used. Red Hat has issued an important security advisory and released updated packages to address this issue. The vulnerability is rated with high severity by Red Hat Product Security. No known exploits are reported in the wild at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The compat-libtiff3 package in Red Hat Enterprise Linux 8 contains a vulnerability identified as CVE-2026-4775, caused by a signed integer overflow during TIFF file processing. This flaw can be exploited to cause arbitrary code execution or denial of service. The issue affects the older libtiff3 library version, which is recommended only when the current libtiff version is not usable. Red Hat has released security updates for multiple architectures and variants of Red Hat Enterprise Linux 8 to fix this vulnerability. The advisory classifies the impact as important and high severity, though no CVSS score is provided. The vendor advisory includes detailed package updates and instructions for remediation.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service on affected systems processing malicious TIFF files. This could compromise system integrity or availability. The vulnerability affects Red Hat Enterprise Linux 8 systems using the compat-libtiff3 package. No known exploits are currently reported in the wild.
Mitigation Recommendations
Red Hat has released updated compat-libtiff3 packages that address CVE-2026-4775. Users of affected Red Hat Enterprise Linux 8 versions should apply these official updates promptly. Detailed instructions and updated packages are available in the Red Hat advisory RHSA-2026:20585 at https://access.redhat.com/errata/RHSA-2026:20585 and https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20585
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a16097ce29bf47b50648810
Added to database: 5/26/2026, 8:58:36 PM
Last enriched: 5/26/2026, 11:03:46 PM
Last updated: 5/27/2026, 4:49:42 AM
Views: 2
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