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7b70517743
Fixes CVE-2022-48303 by checking Base-256 encoding is at least 2 bytes long. GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters. Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-48303 Upstream patch: https://savannah.gnu.org/bugs/?62387 https://git.savannah.gnu.org/cgit/tar.git/patch/src/list.c?id=3da78400eafcccb97e2f2fd4b227ea40d794ede8 (From OE-Core rev: 5223319b43811228d83c2bdac3e542b9a8852dfd) Signed-off-by: Rodolfo Quesada Zumbado <rodolfo.zumbado@windriver.com> Signed-off-by: Joe Slater <joe.slater@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>