fkie_cve-2021-3697
Vulnerability from fkie_nvd
Published
2022-07-06 16:15
Modified
2024-11-21 06:22
Severity ?
Summary
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1991687 | Issue Tracking, Third Party Advisory | |
| secalert@redhat.com | https://security.gentoo.org/glsa/202209-12 | Third Party Advisory | |
| secalert@redhat.com | https://security.netapp.com/advisory/ntap-20220930-0001/ | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1991687 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202209-12 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20220930-0001/ | Third Party Advisory |
Impacted products
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"value": "Una imagen JPEG dise\u00f1ada puede conllevar que el lector de JPEG desborde su puntero de datos, permitiendo que los datos controlados por el usuario sean escritos en la pila. Para que sea realizado con \u00e9xito, el atacante necesita llevar a cabo un triaje sobre la disposici\u00f3n de la pila y llevar a cabo una imagen con un formato y carga \u00fatil maliciosos. Esta vulnerabilidad puede conllevar a una corrupci\u00f3n de datos y la eventual ejecuci\u00f3n de c\u00f3digo o la omisi\u00f3n del arranque seguro. Este fallo afecta a grub2 versiones anteriores a grub-2.12"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.