Buffer overflow in Pillow - CVE-2019-19911

Vulnerability identifier: #VU24205

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-19911

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists when processing FPX images due to the "FpxImagePlugin.py" calls the range function on an unvalidated 32-bit integer if the number of bands is large. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

On Windows running 32-bit Python, this results in an OverflowError or MemoryError due to the 2 GB limit. However, on Linux running 64-bit Python this results in the process being terminated by the OOM killer.

Pillow
pillow (Ubuntu package)
pillow (Debian package)
py-pillow (Alpine package)
py3-pillow (Alpine package)
python2-pillow-help
python-pillow-debugsource
python3-pillow
python-pillow-debuginfo
python2-pillow
python2-pillow-devel
python3-pillow-devel
python3-pillow-help
python-pillow
Fedora
openEuler

Install updates from vendor's website.

Pillow - update to 6.2.2
pillow (Ubuntu package) - addressed in versions 3.1.2-0ubuntu1.3, 5.1.0-1ubuntu0.2, 6.1.0-1ubuntu0.2
pillow (Debian package) - addressed in versions 4.0.0-4+deb9u1, 5.4.1-2+deb10u1
py-pillow (Alpine package) - update to 6.2.2-r0
py3-pillow (Alpine package) - addressed in versions 7.1.2-r1, 7.2.0-r1, 8.1.0-r0
python2-pillow-help - update to 5.3.0-10
python-pillow-debugsource - update to 5.3.0-10
python3-pillow - update to 5.3.0-10
python-pillow-debuginfo - update to 5.3.0-10
python2-pillow - update to 5.3.0-10
python2-pillow-devel - update to 5.3.0-10
python3-pillow-devel - update to 5.3.0-10
python3-pillow-help - update to 5.3.0-10
python-pillow - update to 5.3.0-10
python-pillow - update to 5.4.1-4.fc30
python3-pillow - update to 6.2.2-1.el7

• https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.html

• Multiple vulnerabilities in Pillow
• Ubuntu update for Pillow
• Debian update for pillow
• Buffer overflow in py-pillow (Alpine package)
• Buffer overflow in py3-pillow (Alpine package)
• openEuler 20.03 LTS update for python-pillow
• Fedora EPEL 7 update for python3-pillow
• Fedora 30 update for python-pillow