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CVE-2022-24795

Опубликовано: 05 апр. 2022
Источник: nvd
CVSS3: 5.9
CVSS3: 7.5
CVSS2: 5
EPSS Низкий

Описание

yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of yajl contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at yajl_buf.c#L64 may result in the need 32bit integer wrapping to 0 when need approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a small heap chunk. These integers are declared as size_t in the 2.x branch of yajl, which practically prevents the issue from triggering on 64bit platforms, however this does not preclude this issue triggering on 32bit builds on which size_t is a 32bit integer. Subsequent population of this under-allocated heap chunk is based on the original buffer size, leading to heap memory corruption. This vulnerability mostly impacts process availability. Maintainers believe exploitation for arbitrary code execution is unlikely. A patch is available an

Ссылки

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:yajl-ruby_project:yajl-ruby:*:*:*:*:*:ruby:*:*
Версия до 1.4.2 (исключая)

EPSS

Процентиль: 77%
0.01099
Низкий

5.9 Medium

CVSS3

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-122

Связанные уязвимости

CVSS3: 5.9
ubuntu
больше 3 лет назад

yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at `yajl_buf.c#L64` may result in the `need` 32bit integer wrapping to 0 when `need` approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a small heap chunk. These integers are declared as `size_t` in the 2.x branch of `yajl`, which practically prevents the issue from triggering on 64bit platforms, however this does not preclude this issue triggering on 32bit builds on which `size_t` is a 32bit integer. Subsequent population of this under-allocated heap chunk is based on the original buffer size, leading to heap memory corruption. This vulnerability mostly impacts process availability. Maintainers believe exploitation for arbitrary code execution is unlikely. A patch is available...

CVSS3: 5.9
redhat
больше 3 лет назад

yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at `yajl_buf.c#L64` may result in the `need` 32bit integer wrapping to 0 when `need` approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a small heap chunk. These integers are declared as `size_t` in the 2.x branch of `yajl`, which practically prevents the issue from triggering on 64bit platforms, however this does not preclude this issue triggering on 32bit builds on which `size_t` is a 32bit integer. Subsequent population of this under-allocated heap chunk is based on the original buffer size, leading to heap memory corruption. This vulnerability mostly impacts process availability. Maintainers believe exploitation for arbitrary code execution is unlikely. A patch is available...

CVSS3: 7.5
msrc
больше 3 лет назад

Описание отсутствует

CVSS3: 5.9
debian
больше 3 лет назад

yajl-ruby is a C binding to the YAJL JSON parsing and generation libra ...

suse-cvrf
почти 3 года назад

Security update for libyajl

EPSS

Процентиль: 77%
0.01099
Низкий

5.9 Medium

CVSS3

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-122