CVE-2020-10378: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2020-10378 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 66% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 25-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · PypiEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
1.11%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.11% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu2 products
- pillow< 3.1.2-0ubuntu1.4 | < 5.1.0-1ubuntu0.3 | < 7.0.0-4ubuntu0.1
- pillow-python2All versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 20.04
Debian1 product
- pillow< 7.2.0-1
Fedoraproject1 product
- fedoraEOL31 | 32
PyPI1 product
- pillow< 6a83e4324738bb0452fbe8074a995b1c73f08de7 | < 7.1.0
Python1 product
- pillow< 7.1.0
6 vendors · 7 products
References
27 links- github.com/python-pillow/Pillow/commit/6a83e4324738bb0452fbe8074a995b1c73f08de7X Refsource MISCWEBFIXPatch
