Buffer overflow in Libtiff
CVE-2020-35521
A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service.
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:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Libtiff
- NetApp Ontap Select Deploy Administration Utility
- Fedoraproject Fedora — versions 33
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Libtiff — versions libtiff 4.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202104-06 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210521-0009/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35521?
- CVE-2020-35521 is a medium-severity vulnerability in Libtiff, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2021-03-09.
- How severe is CVE-2020-35521?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-35521 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.