CVE-2019-7663: canonical ubuntu_linux
Vulnerability summary
CVE-2019-7663 is a medium (CVSS 6.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.36% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 7 · Related 5Timeline
- 09-02-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An Invalid Address dereference was discovered in TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c in LibTIFF 4.0.10, affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted tiff file. This is different from CVE-2018-12900.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.36%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
-0.01 pp
From 3.37% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.maptools.org)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu5 products
- gdalAll versions (No fix recorded)
- qtimageformats-opensource-srcAll versions (No fix recorded)
- qtwebengine-opensource-srcAll versions (No fix recorded)
- texmakerAll versions (No fix recorded)
- tiff< 4.0.3-7ubuntu0.11 | < 4.0.6-1ubuntu0.6 | < 4.0.9-5ubuntu0.2
Debian2 products
- tiff< 4.0.10-4
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 18.10
Libtiff1 product
- libtiff4.0.10
Mageia1 product
- libtiff< 4.0.10-1.git20190219.1.mga6
Opensuse1 product
- leapEOL15.0
6 vendors · 11 products
References
17 links- bugzilla.maptools.org/show_bug.cgi?id=2833X Refsource MISCExploitIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39X Refsource CONFIRMPatchThird Party Advisory