SB2020010305 - Multiple vulnerabilities in Pillow
Published: January 3, 2020 Updated: January 13, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2020-5313)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the "libImaging/FliDecode.c" file due to a boundary error when processing FLI image. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Buffer overflow (CVE-ID: CVE-2020-5312)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the "libImaging/PcxDecode.c" file due to a boundary error when processing PCX image. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Buffer overflow (CVE-ID: CVE-2020-5311)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the "ibImaging/SgiRleDecode.c" file due to a boundary error when processing an SGI image. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Integer overflow (CVE-ID: CVE-2020-5310)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to TIFF decoding integer overflow in "libImaging/TiffDecode.c". A remote attacker can trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Buffer overflow (CVE-ID: CVE-2019-19911)
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.
Remediation
Install update from vendor's website.
References
- https://github.com/python-pillow/Pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365b
- https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.html
- https://github.com/python-pillow/Pillow/commit/93b22b846e0269ee9594ff71a72bec02d2bea8fd
- https://github.com/python-pillow/Pillow/commit/a79b65c47c7dc6fe623aadf09aa6192fc54548f3
- https://github.com/python-pillow/Pillow/commit/4e2def2539ec13e53a82e06c4b3daf00454100c4