Out-of-bounds Read in Libtiff
CVE-2022-4645
LibTIFF 4.4.0 has an out-of-bounds read in tiffcp in tools/tiffcp.c:948, 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 e8131125.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Libtiff — versions <=4.4.0
- Fedoraproject Fedora — versions 36, 37, 38
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/libtiff/libtiff/-/issues/277 (Exploit, Issue Tracking, Vendor Advisory)
- gitlab.com/libtiff/libtiff/-/commit/e813112545942107551433d61afd16ac094ff246 (Patch)
- gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4645.json (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230331-0001/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-4645?
- CVE-2022-4645 is a medium-severity vulnerability in Libtiff, classified under Out-of-bounds Read. CVSS score: 6.8/10. Published 2023-03-03.
- How severe is CVE-2022-4645?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2022-4645 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.