Описание
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | 4.4.18-2ubuntu1.1 |
| cosmic | not-affected | |
| devel | not-affected | |
| disco | not-affected | |
| eoan | not-affected | |
| esm-infra-legacy/trusty | not-affected | 4.3.7ubuntu1.8 |
| esm-infra/bionic | not-affected | 4.4.18-2ubuntu1.1 |
| esm-infra/xenial | not-affected | 4.3-14ubuntu1.3 |
| precise/esm | not-affected | 4.2-2ubuntu2.9 |
| trusty | ignored | end of standard support |
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EPSS
4.6 Medium
CVSS2
7 High
CVSS3
Связанные уязвимости
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide c ...
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
EPSS
4.6 Medium
CVSS2
7 High
CVSS3