Format string error in libpano13 - CVE-2021-20307

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Main Vulnerability Database Vulnerabilities #VU77454

Format string error in libpano13 - CVE-2021-20307

Published: June 15, 2023


Vulnerability identifier: #VU77454
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20307
CWE-ID: CWE-134
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a format string error within the panoFileOutputNamesCreate() function. A remote attacker can supply a specially crafted input that contains format string specifiers and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

libpano13
Gentoo Linux
Arch Linux
Ubuntu
Fedora
libpano13-3 (Ubuntu package)
libpano13-bin (Ubuntu package)
libpano13-dev (Ubuntu package)
libpano13-2 (Ubuntu package)
media-libs/libpano13
libpano13

How to mitigate CVE-2021-20307

Install updates from vendor's website.

libpano13 - update to 2.9.21
libpano13-3 (Ubuntu package) - addressed in versions Ubuntu Pro, 2.9.19+dfsg-3ubuntu0.20.04.1
libpano13-bin (Ubuntu package) - addressed in versions Ubuntu Pro, 2.9.19+dfsg-3ubuntu0.20.04.1
libpano13-dev (Ubuntu package) - addressed in versions Ubuntu Pro, 2.9.19+dfsg-3ubuntu0.20.04.1
libpano13-2 (Ubuntu package) - update to Ubuntu Pro
media-libs/libpano13 - update to 2.9.20
libpano13 - addressed in versions 2.9.20-1.fc32, 2.9.20-1.fc33, 2.9.20-1.fc34

External References

Related Security Bulletins