Out-of-bounds Read in Python Pillow
CVE-2020-10378
In libImaging/PcxDecode.c in Pillow before 7.1.0, an out-of-bounds read can occur when reading PCX files where state->shuffle is instructed to read beyond state->buffer.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.011 (64.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000
Affected products
- Python Pillow
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Fedoraproject Fedora — versions 31, 32
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/python-pillow/Pillow/commits/master/src/libImaging (Broken Link)
- github.com/python-pillow/Pillow/pull/4538 (Patch, Issue Tracking)
- github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7 (Patch)
- pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html (Product)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/4430-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4430-2/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10378?
- CVE-2020-10378 is a medium-severity vulnerability in Python Pillow, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-06-25.
- How severe is CVE-2020-10378?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-10378 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.