CVE-2019-19777: nothings stb_image.h Out-of-bounds Read
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2019-19777DEBIAN-CVE-2019-19777
Published 13-12-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-19777 is a high (CVSS 8.8) Out-of-bounds Read vulnerability in nothings stb_image.h. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.39%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 13-12-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.39%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
-0.01 pp
From 1.40% on 18-09-2026
18-09-202618-10-2026
EPSS score1.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibsixel
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libsixel< 1.8.6-1
Nothings1 product
- stb_image.h2.23
Saitoha1 product
- libsixel1.8.2
Ubuntu1 product
- libsixelAll versions (No fix recorded)
4 vendors · 4 products
