RHSA-2026:30268
Vulnerability from csaf_redhat - Published: 2026-06-26 11:42 - Updated: 2026-06-26 11:45Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
bzip2:
* bzip2-1.0.8-23.2.hum1 (aarch64, x86_64)
* bzip2-devel-1.0.8-23.2.hum1 (aarch64, x86_64)
* bzip2-libs-1.0.8-23.2.hum1 (aarch64, x86_64)
* bzip2-static-1.0.8-23.2.hum1 (aarch64, x86_64)
* bzip2-1.0.8-23.2.hum1.src (src)
Security Fix(es):
bzip2:
* CVE-2026-42250
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 bzip2. The bzip2recover utility contains an off-by-one error that allows a local attacker to cause an out-of-bounds write to a global buffer by processing a specially crafted file. This memory corruption can lead to a crash, resulting in a Denial of Service (DoS).
5.0 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:bzip2-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:bzip2-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:bzip2-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
11 references
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"text": "This update includes the following RPMs:\n\nbzip2:\n * bzip2-1.0.8-23.2.hum1 (aarch64, x86_64)\n * bzip2-devel-1.0.8-23.2.hum1 (aarch64, x86_64)\n * bzip2-libs-1.0.8-23.2.hum1 (aarch64, x86_64)\n * bzip2-static-1.0.8-23.2.hum1 (aarch64, x86_64)\n * bzip2-1.0.8-23.2.hum1.src (src)\n\nSecurity Fix(es):\n\nbzip2:\n * CVE-2026-42250",
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"vulnerabilities": [
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"cwe": {
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"name": "Off-by-one Error"
},
"discovery_date": "2026-05-28T15:01:34.141970+00:00",
"ids": [
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"text": "A flaw was found in bzip2. The bzip2recover utility contains an off-by-one error that allows a local attacker to cause an out-of-bounds write to a global buffer by processing a specially crafted file. This memory corruption can lead to a crash, resulting in a Denial of Service (DoS).",
"title": "Vulnerability description"
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{
"category": "summary",
"text": "bzip2: bzip2: Denial of Service in bzip2recover via a specially crafted file",
"title": "Vulnerability summary"
},
{
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"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"
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{
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{
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{
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"url": "https://sourceware.org/bzip2/"
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"release_date": "2026-05-28T13:15:19.660000+00:00",
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"date": "2026-06-26T11:42:27+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:bzip2-main@aarch64",
"Red Hat Hardened Images:bzip2-main@src",
"Red Hat Hardened Images:bzip2-main@x86_64"
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"url": "https://access.redhat.com/errata/RHSA-2026:30268"
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"scores": [
{
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"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"
},
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"Red Hat Hardened Images:bzip2-main@x86_64"
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "bzip2: bzip2: Denial of Service in bzip2recover via a specially crafted file"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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