Описание
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
A vulnerability was found in glibc. When the printf family of functions is called with a format specifier that uses an apostrophe (enable grouping) and a minimum width specifier, the resulting output could be larger than reasonably expected by a caller that computed a tight bound on the buffer size. The resulting larger-than-expected output could result in a buffer overflow in the printf family of functions.
Отчет
The glibc package as shipped with Red Hat Enterprise Linux 6, 7, 8 and 9 is not affected by this vulnerability because this issue is specific to glibc 2.37. This glibc version is not distributed by any version of Red Hat Enterprise Linux.
Меры по смягчению последствий
An application compiled with stack protector enabled can mitigate this issue.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | compat-glibc | Not affected | ||
| Red Hat Enterprise Linux 6 | glibc | Not affected | ||
| Red Hat Enterprise Linux 7 | compat-glibc | Not affected | ||
| Red Hat Enterprise Linux 7 | glibc | Not affected | ||
| Red Hat Enterprise Linux 8 | glibc | Not affected | ||
| Red Hat Enterprise Linux 9 | glibc | Not affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-o ...
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
Уязвимость функции sprintf библиотеки GNU C (glibc), позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации
EPSS
7.5 High
CVSS3