Описание
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| xz-utils | fixed | 5.2.5-2.1 | package | |
| gzip | fixed | 1.12-1 | package |
Примечания
https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patch
https://git.tukaani.org/?p=xz.git;a=commit;h=69d1b3fc29677af8ade8dc15dba83f0589cb63d6
https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=dc9740df61e575e8c3148b7bd3c147a81ea00c7c (v1.12)
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=d74a30d45c6834c8e9f87115197370fe86656d81 (v1.12)
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=c99f320d5c0fd98fe88d9cea5407eb7ad9d50e8a (v1.12)
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=6543c09c6ecfb1630085d440b76511953bc5a2cb (v1.12)
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=0e2d07fc2c4393cfb9dbab580d0bee4525b9c9b3 (v1.12)
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=5e1fc8b92c1af9382365aef0f9130341ee1d2c76 (v1.12)
Improves further the fix: https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=9d3248751178939713a39115cf68ec8a11506cc9 (v1.12)
https://www.openwall.com/lists/oss-security/2022/04/07/8
https://www.zerodayinitiative.com/advisories/ZDI-22-619/
EPSS
Связанные уязвимости
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
EPSS