RHSA-2026:7504
Vulnerability from csaf_redhat - Published: 2026-04-10 20:49 - Updated: 2026-04-20 21:32Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
libtiff:
* libtiff-4.7.1-2.1.hum1 (aarch64, x86_64)
* libtiff-devel-4.7.1-2.1.hum1 (aarch64, x86_64)
* libtiff-static-4.7.1-2.1.hum1 (aarch64, x86_64)
* libtiff-tools-4.7.1-2.1.hum1 (aarch64, x86_64)
* libtiff-4.7.1-2.1.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Libtiff. This vulnerability is a "write-what-where" condition, triggered when the library processes a specially crafted TIFF image file. By providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user.
8.8 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7504
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
A flaw was found in libtiff. This vulnerability, a NULL pointer dereference, occurs in the `tif_open.c` component. An attacker could exploit this by providing specially crafted input, leading to a Denial of Service (DoS) due to an application crash.
5.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7504
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
A denial of service flaw has been found in libtiff. This stack-based buffer overflow occurs in tiffcrop (part of libtiff) within the function readSeparateStripsIntoBuffer. When processing a malformed TIFF directory (e.g., improper tags/order, missing StripByteCounts), the function overflows a stack-allocated array (srcbuffs) by accessing one element beyond its boundary in combineSeparateSamplesBytes. This leads to an AddressSanitizer-detected buffer over-read and crash.
5.0 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7504
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
A denial of service flaw via segmentation fault has been found in libtiff. This segmentation fault vulnerability is caused by accessing invalid or corrupted memory addresses during memory deallocation operations. The root issue lies in the cleanup logic of the main function where the program attempts to free memory that has been corrupted or points to an invalid memory region.
5.0 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7504
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References
Acknowledgments
AnchorSec Ltd.
Gareth C
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"title": "Statement"
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{
"category": "external",
"summary": "https://gitlab.com/libtiff/libtiff/-/commit/88cf9dbb48f6e172629795ecffae35d5052f68aa",
"url": "https://gitlab.com/libtiff/libtiff/-/commit/88cf9dbb48f6e172629795ecffae35d5052f68aa"
},
{
"category": "external",
"summary": "https://gitlab.com/libtiff/libtiff/-/issues/740",
"url": "https://gitlab.com/libtiff/libtiff/-/issues/740"
},
{
"category": "external",
"summary": "https://gitlab.com/libtiff/libtiff/-/merge_requests/757",
"url": "https://gitlab.com/libtiff/libtiff/-/merge_requests/757"
}
],
"release_date": "2026-02-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-10T20:49:01+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:7504"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "libtiff: libtiff: Denial of Service via buffer overflow"
},
{
"cve": "CVE-2025-61145",
"cwe": {
"id": "CWE-1341",
"name": "Multiple Releases of Same Resource or Handle"
},
"discovery_date": "2026-02-23T19:04:18.608968+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2441975"
}
],
"notes": [
{
"category": "description",
"text": "A denial of service flaw via segmentation fault has been found in libtiff. This segmentation fault vulnerability is caused by accessing invalid or corrupted memory addresses during memory deallocation operations. The root issue lies in the cleanup logic of the main function where the program attempts to free memory that has been corrupted or points to an invalid memory region.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "libtiff: libtiff: Denial of service via double free in tiffcrop.c",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-61145"
},
{
"category": "external",
"summary": "RHBZ#2441975",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2441975"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-61145",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-61145"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-61145",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61145"
},
{
"category": "external",
"summary": "https://gist.github.com/optionGo/062f109569196dbffd8ac12020b42289",
"url": "https://gist.github.com/optionGo/062f109569196dbffd8ac12020b42289"
},
{
"category": "external",
"summary": "https://gitlab.com/libtiff/libtiff/-/issues/736",
"url": "https://gitlab.com/libtiff/libtiff/-/issues/736"
},
{
"category": "external",
"summary": "https://gitlab.com/libtiff/libtiff/-/merge_requests/753",
"url": "https://gitlab.com/libtiff/libtiff/-/merge_requests/753"
}
],
"release_date": "2026-02-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-10T20:49:01+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:7504"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:libtiff-main@aarch64",
"Red Hat Hardened Images:libtiff-main@src",
"Red Hat Hardened Images:libtiff-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "libtiff: libtiff: Denial of service via double free in tiffcrop.c"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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