CVE-2018-20098: exiv2 Out-of-bounds Read
CVSS: 6.5v3.0MediumModified
AliasesPYSEC-2018-119
Published 12-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-20098 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in exiv2. EPSS estimates a 2.57% chance of exploitation in the next 30 days, higher than 84.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
2.57%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 12-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
There is a heap-based buffer over-read in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · PypiEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.57%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.57% on 19-09-2026
19-09-202619-10-2026
EPSS score2.57%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPocs
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Exiv21 product
- exiv20.27:rc3
PyPI1 product
- exiv2All versions (No fix recorded)
2 vendors · 2 products
References
4 links- github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206X Refsource MISCExploitIssue TrackingThird Party AdvisoryWEB