Описание
Security update for tar
This update for tar fixes the following issues
- CVE-2026-5704: crafted archives can be used to to hide file injection (bsc#1261900).
- Fix --dereference/-h not working properly after CVE-2025-45582 fix (bsc#1265450).
Список пакетов
openSUSE Leap 16.0
Ссылки
- SUSE Security Ratings
- SUSE Bug 1261900
- SUSE Bug 1265450
- SUSE Bug 1267189
- SUSE CVE CVE-2025-45582 page
- SUSE CVE CVE-2026-5704 page
Описание
GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical directory. Second, the victim must extract an archive that contains a critical file, specified via a relative pathname that begins with the symlink name and ends with that critical file's name. Here, the extraction follows the symlink and overwrites the critical file. This bypasses the protection mechanism of "Member name contains '..'" that would occur for a single TAR archive that attempted to specify the critical file via a ../ approach. For example, the first archive can contain "x -> ../../../../../home/victim/.ssh" and the second archive can contain x/authorized_keys. This can affect server applications that automatically extract any number of user-supplied TAR archives, and were relying on the blocking of traversal. This can also affect software installation processes in which "tar xf" is run more than once (e.g., when installing a package can automatically install two dependencies that are set up as untrusted tarballs instead of official packages). NOTE: the official GNU Tar manual has an otherwise-empty directory for each "tar xf" in its Security Rules of Thumb; however, third-party advice leads users to run "tar xf" more than once into the same directory.
Затронутые продукты
Ссылки
- CVE-2025-45582
- SUSE Bug 1246399
- SUSE Bug 1265450
- SUSE Bug 1266731
- SUSE Bug 1267189
Описание
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
Затронутые продукты
Ссылки
- CVE-2026-5704
- SUSE Bug 1261900