Out-of-bounds Read in Libtiff
CVE-2022-1623
LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:624, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa.
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: 0.013 (68.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: -0.000
Affected products
- Libtiff — versions 4.3.0, 3079627ea0dee150e6a208cec8381de611bb842b
- NetApp Ontap Select Deploy Administration Utility
- Debian Linux — versions 11.0
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/libtiff/libtiff/-/issues/410 (Exploit, Third Party Advisory)
- gitlab.com/libtiff/libtiff/-/commit/b4e79bfa0c7d2d08f6f1e7ec38143fc8cb11394a (Patch, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1623.json (Third Party Advisory)
- security.netapp.com/advisory/ntap-20220616-0005/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202210-10 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2023/dsa-5333 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-1623?
- CVE-2022-1623 is a medium-severity vulnerability in Libtiff, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2022-05-11.
- How severe is CVE-2022-1623?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-1623 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.