未評価
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivil...
CVE-2020-13696
SecPulse初出
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2020-13696 xawtv 修正版: 3.107-1
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
参照URL
- advisory lists.opensuse.org
- advisory lists.opensuse.org
- advisory lists.debian.org
- advisory usn.ubuntu.com
- patch git.linuxtv.org
- patch git.linuxtv.org
- patch git.linuxtv.org
- report openwall.com
- report bugzilla.suse.com
- web lists.fedoraproject.org
- web lists.fedoraproject.org