Vulnerability in uTox

[ Description ]Official description

uTox through 0.18.1 contains a path traversal vulnerability that allows Tox friends to write arbitrary files by sending absolute or ../ file names to victims with auto-accept enabled. Attackers can overwrite shell startup files or plant crafted .ftinfo resume records that ft_find_resumeable() loads, abusing FILE pointers to write /proc/self/mem and execute code.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/uTox/uTox
• github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/file_transfers.c
• github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/xlib/filesys.c
• github.com/uTox/uTox/issues/1587
• github.com/uTox/uTox/pull/1602
• github.com/uTox/uTox/pull/1603
• www.vulncheck.com/advisories/utox-through-0.18.1-path-traversal-via-auto-accepted-file-…