CVE-2015-2304

Absolute path traversal vulnerability in bsdcpio in libarchive 3.1.2 and earlier allows remote attackers to write to arbitrary files via a full pathname in an archive.

These are all security issues fixed in the bsdtar-3.2.2-2.1 package on the GA media of openSUSE Tumbleweed.

libarchive was updated to fix a directory traversal in the bsdcpio tool, which allowed attackers supplying crafted archives to overwrite files. (CVE-2015-2304)

Also, a integer overflow was fixed that could also overflow buffers. (CVE-2013-0211)

bsdtar was updated to fix seven security issues.

These security issues were fixed:

• CVE-2015-8929: Memory leak in tar parser (bsc#985669).
• CVE-2016-4809: Memory allocate error with symbolic links in cpio archives (bsc#984990).
• CVE-2015-8920: Stack out of bounds read in ar parser (bsc#985675).
• CVE-2015-8921: Global out of bounds read in mtree parser (bsc#985682).
• CVE-2015-8924: Heap buffer read overflow in tar (bsc#985609).
• CVE-2015-8918: Overlapping memcpy in CAB parser (bsc#985698).
• CVE-2015-2304: Reject absolute paths in input mode of bsdcpio exactly when '..' is rejected (bsc#920870).

This update for libarchive fixes several issues.

These security issues were fixed:

• CVE-2016-8687: Buffer overflow when printing a filename (bsc#1005070).
• CVE-2016-8689: Heap overflow when reading corrupted 7Zip files (bsc#1005072).
• CVE-2016-8688: Use after free because of incorrect calculation in next_line (bsc#1005076).
• CVE-2016-5844: Integer overflow in the ISO parser in libarchive allowed remote attackers to cause a denial of service (application crash) via a crafted ISO file (bsc#986566).
• CVE-2016-6250: Integer overflow in the ISO9660 writer in libarchive allowed remote attackers to cause a denial of service (application crash) or execute arbitrary code via vectors related to verifying filename lengths when writing an ISO9660 archive, which trigger a buffer overflow (bsc#989980).
• CVE-2016-5418: The sandboxing code in libarchive mishandled hardlink archive entries of non-zero data size, which might allowed remote attackers to write to arbitrary files via a crafted archive file (bsc#998677).

Absolute path traversal vulnerability in bsdcpio in libarchive 3.1.2 and earlier allows remote attackers to write to arbitrary files via a full pathname in an archive.

It was discovered that the libarchive bsdcpio utility extracted absolute paths by default without using the --insecure flag, contrary to expectations. If a user or automated system were tricked into extracting cpio archives containing absolute paths, a remote attacker may be able to write to arbitrary files. (CVE-2015-2304)

Fabian Yamaguchi discovered that libarchive incorrectly handled certain type conversions. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2013-0211)