Описание
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needed |
| devel | not-affected | does not affect Secure Boot |
| esm-infra-legacy/trusty | not-affected | does not affect Secure Boot |
| esm-infra/bionic | not-affected | does not affect Secure Boot |
| esm-infra/focal | not-affected | does not affect Secure Boot |
| esm-infra/xenial | not-affected | does not affect Secure Boot |
| focal | not-affected | does not affect Secure Boot |
| impish | ignored | end of life |
| jammy | not-affected | does not affect Secure Boot |
| kinetic | not-affected | does not affect Secure Boot |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1.187.3~18.04.1 |
| devel | not-affected | 1.193 |
| esm-infra-legacy/trusty | needed | |
| esm-infra/bionic | not-affected | 1.187.3~18.04.1 |
| esm-infra/focal | not-affected | 1.187.3~20.04.1 |
| esm-infra/xenial | needed | |
| focal | released | 1.187.3~20.04.1 |
| jammy | released | 1.187.3~22.04.1 |
| kinetic | ignored | end of life |
| lunar | not-affected | 1.192 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 2.06-2ubuntu14.1 |
| devel | not-affected | 2.06-2ubuntu17 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | 2.06-2ubuntu14.1 |
| esm-infra/focal | not-affected | 2.06-2ubuntu14.1 |
| esm-infra/xenial | needed | |
| focal | released | 2.06-2ubuntu14.1 |
| jammy | released | 2.06-2ubuntu14.1 |
| kinetic | ignored | end of life |
| lunar | not-affected | 2.06-2ubuntu16 |
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EPSS
4.4 Medium
CVSS2
4.5 Medium
CVSS3
Связанные уязвимости
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write ...
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.
EPSS
4.4 Medium
CVSS2
4.5 Medium
CVSS3