FKIE_CVE-2026-33845
Vulnerability from fkie_nvd - Published: 2026-04-30 18:16 - Updated: 2026-07-02 12:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| gnu | gnutls | - | |
| redhat | openshift_container_platform | 4.0 | |
| redhat | enterprise_linux | 6.0 | |
| redhat | enterprise_linux | 7.0 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux | 9.0 | |
| redhat | enterprise_linux | 10.0 |
{
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"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
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"cpes": [
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"product": "Red Hat Enterprise Linux 10",
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{
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}
]
},
{
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"cpes": [
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],
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"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
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{
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}
]
},
{
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"cpes": [
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],
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}
]
},
{
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{
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}
]
},
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],
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}
]
},
{
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"cpe:/a:redhat:rhel_e4s:8.8::appstream",
"cpe:/a:redhat:rhel_tus:8.8::appstream",
"cpe:/o:redhat:rhel_e4s:8.8::baseos",
"cpe:/o:redhat:rhel_tus:8.8::baseos"
],
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"cpe:/o:redhat:rhel_tus:8.8::baseos"
],
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]
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}
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]
},
{
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],
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},
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],
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"vendor": "Red Hat",
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},
{
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],
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},
{
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},
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],
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"packageName": "rhcos",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"source": "secalert@redhat.com"
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],
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"vendor": "Red Hat"
},
{
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],
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},
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},
{
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"cpe:/a:redhat:rhel_aus:8.4::appstream"
],
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"vendor": "Red Hat"
},
{
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},
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],
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"product": "Red Hat Enterprise Linux AppStream E4S (v.8.8)",
"vendor": "Red Hat"
},
{
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],
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},
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],
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"vendor": "Red Hat"
},
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],
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},
{
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},
{
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],
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"product": "Red Hat Enterprise Linux BaseOS EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
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],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 10)",
"vendor": "Red Hat"
},
{
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],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 8)",
"vendor": "Red Hat"
},
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{
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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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