SUSE-SU-2026:23363-1
Vulnerability from csaf_suse - Published: 2026-08-28 11:23 - Updated: 2026-09-17 16:19Summary
Security update for gzip
Severity
Moderate
Notes
Title of the patch: Security update for gzip
Description of the patch: This update for gzip fixes the following issues:
- CVE-2026-41992: global buffer overflow in the LZH decompression logic due to improper reuse of shared global state
between different decompression formats within a single execution (bsc#1269623).
- crafted LZW file followed by a crafted LZH file can cause an out-of-bounds memory buffer access (bsc#1272554).
Patchnames: SUSE-SLE-Micro-6.0-868
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
6.1 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:gzip-0:1.13-3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.0:gzip-0:1.13-3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.0:gzip-0:1.13-3.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
10 references
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"text": "This update for gzip fixes the following issues:\n\n- CVE-2026-41992: global buffer overflow in the LZH decompression logic due to improper reuse of shared global state\n between different decompression formats within a single execution (bsc#1269623).\n- crafted LZW file followed by a crafted LZH file can cause an out-of-bounds memory buffer access (bsc#1272554).\n",
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"vulnerabilities": [
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"notes": [
{
"category": "general",
"text": "GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation.\nBy decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out-of-bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.\n\nThis issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and e7378c2d421be6a286922374425680bbe9ad8b7d.",
"title": "CVE description"
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"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
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}
],
"scores": [
{
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
"version": "3.1"
},
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],
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"date": "2026-08-28T11:23:15Z",
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],
"title": "CVE-2026-41992"
}
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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