A format string vulnerability has been found in libpano13, potentially resulting in arbitrary code execution.

Announced

2021-07-20

Revised

2021-07-20

Access

remote

Bugs

#780486

Advisory

https://security.gentoo.org/glsa/202107-47

Affected packages

Package	Arch	Vulnerable	Unaffected
media-libs/libpano13	*	< 2.9.20	>= 2.9.20

Background

libpano13 is Helmut Dersch’s panorama toolbox library.

Description

A format string issue exists within panoFileOutputNamesCreate() where unvalidated input is passed directly into the formatter.

Impact

A remote attacker could entice a user to open a specially crafted file using libpano13, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libpano13 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpano13-2.9.20"

References

• CVE-2021-20307