CVE-2020-18771: debian debian_linux Out-of-bounds Read
CVSS: 8.1v3.1HighModified
AliasesUBUNTU-CVE-2020-18771DEBIAN-CVE-2020-18771
Published 23-08-2021Last modified 18-11-2024
Vulnerability summary
CVE-2020-18771 is a high (CVSS 8.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 1.83% chance of exploitation in the next 30 days, higher than 78.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.1/10
010
High · v3.1 (NVD)EPSS score
1.83%
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 1 · Related 1Timeline
- 23-08-2021PublishedVulnerability first disclosed.
- 18-11-2024Last modifiedVulnerability information updated.
Description
Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.83%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.83% on 19-09-2026
19-09-202619-10-2026
EPSS score1.83%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExiv2
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- exiv2< 0.27.2-6
- debian_linuxEOL10.0
Exiv21 product
- exiv20.27.99.0
Ubuntu1 product
- exiv2< 0.25-2.1ubuntu16.04.7+esm5 | < 0.25-3.1ubuntu0.18.04.11+esm1
3 vendors · 4 products
References
8 links
- security.gentoo.org/glsa/202312-06Vendor Advisory