CVE-2020-19144
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in...
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
6.5
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
CVE-2020-19144- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
CVE-2020-19144- Updated
- 2026-11-02
EUVDEUVD-2020-11051 No score
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
EUVD-2020-11051- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-54q9-347p-ccwv No score
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in...
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
GHSA-54q9-347p-ccwv- Weakness
- CWE-787
- Updated
- 2026-11-02
OSVAZL-45054
6.5
CVE-2020-19144 affecting package openjpeg2 2.3.1-12
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
AZL-45054- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
6.5
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
CVE-2020-19144- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 5 moreShow less
OSVDEBIAN-CVE-2020-19144
6.5
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
DEBIAN-CVE-2020-19144- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVJLSEC-2026-483
6.5
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
JLSEC-2026-483- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-19144
6.5
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the 'in _TIFFmemcpy' funtion in the component 'tif_unix.c'.
- Record
UBUNTU-CVE-2020-19144- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-5523-1 No score
tiff vulnerabilities
It was discovered that LibTIFF was not properly performing checks to guarantee that allocated memory space existed, which could lead to a NULL pointer dereference via a specially crafted file. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-0907, CVE-2022-0908)
It was discovered that LibTIFF was not properly performing checks to avoid division calculations where the denominator value was zero, which could lead to an undefined behavior situation via a specially crafted file. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-0909)
It was discovered that LibTIFF was not properly performing bounds checks, which could lead to an out-of-bounds read via a specially crafted file. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. (CVE-2022-0924)
It was discovered that LibTIFF was not properly performing the calculation of data that would eventually be used as a reference for bounds checking operations, which could lead to an out-of-bounds read via a specially crafted file. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. (CVE-2020-19131)
It was discovered that LibTIFF was not properly terminating a function execution when processing incorrect data, which could lead to an out-of-bounds read via a specially crafted file. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. (CVE-2020-19144)
It was discovered that LibTIFF was not properly performing checks when setting the value for data later used as reference during memory access, which could lead to an out-of-bounds read via a specially crafted file. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. (CVE-2022-22844)
- Record
USN-5523-1- Updated
- 2026-11-02
OSVUSN-5619-1 No score
tiff vulnerabilities
It was discovered that LibTIFF was not properly performing the calculation of data that would eventually be used as a reference for bound-checking operations. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2020-19131)
It was discovered that LibTIFF was not properly terminating a function execution when processing incorrect data. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2020-19144)
It was discovered that LibTIFF did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted TIFF file using tiffinfo tool, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-1354)
It was discovered that LibTIFF did not properly manage memory under certain
circumstances. If a user were tricked into opening a specially crafted TIFF
file using tiffcp tool, an attacker could possibly use this issue to
cause a denial of service. (CVE-2022-1355)
It was discovered that LibTIFF was not properly performing checks to avoid division calculations where the denominator value was zero, which could lead to an undefined behaviour situation via a specially crafted file. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-2056, CVE-2022-2057, CVE-2022-2058)
- Record
USN-5619-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openjpeg2Azure Linux:3 |
through 2.3.1-12 | None known |
tiffDebian:12 |
before 4.0.10+git190814-1 | 4.0.10+git190814-1 |
tiffDebian:13 |
before 4.0.10+git190814-1 | 4.0.10+git190814-1 |
tiffDebian:14 |
before 4.0.10+git190814-1 | 4.0.10+git190814-1 |
tiffDebian:9 |
before 4.0.8-2+deb9u7, plus listed versions 4.0.8-24.0.8-2+deb9u14.0.8-2+deb9u24.0.8-2+deb9u34.0.8-2+deb9u44.0.8-2+deb9u54.0.8-2+deb9u6 |
4.0.8-2+deb9u7 |
Libtiff_jllJulia |
before 4.1.0+0 | 4.1.0+0 |
tiffUbuntu:Pro:14.04:LTS |
before 4.0.3-7ubuntu0.11+esm2, plus listed versions 4.0.2-4ubuntu34.0.3-5ubuntu14.0.3-64.0.3-6ubuntu14.0.3-7 Show 11 moreShow less4.0.3-7ubuntu0.14.0.3-7ubuntu0.24.0.3-7ubuntu0.34.0.3-7ubuntu0.44.0.3-7ubuntu0.64.0.3-7ubuntu0.74.0.3-7ubuntu0.84.0.3-7ubuntu0.94.0.3-7ubuntu0.104.0.3-7ubuntu0.114.0.3-7ubuntu0.11+esm1 |
4.0.3-7ubuntu0.11+esm2 |
tiffUbuntu:Pro:16.04:LTS |
before 4.0.6-1ubuntu0.8+esm2, plus listed versions 4.0.3-12.3ubuntu24.0.5-14.0.6-14.0.6-1ubuntu0.14.0.6-1ubuntu0.2 Show 7 moreShow less4.0.6-1ubuntu0.34.0.6-1ubuntu0.44.0.6-1ubuntu0.54.0.6-1ubuntu0.64.0.6-1ubuntu0.74.0.6-1ubuntu0.84.0.6-1ubuntu0.8+esm1 |
4.0.6-1ubuntu0.8+esm2 |
tiffUbuntu:18.04:LTS |
before 4.0.9-5ubuntu0.7, plus listed versions 4.0.8-54.0.8-64.0.9-14.0.9-24.0.9-3 Show 9 moreShow less4.0.9-44.0.9-4ubuntu14.0.9-54.0.9-5ubuntu0.14.0.9-5ubuntu0.24.0.9-5ubuntu0.34.0.9-5ubuntu0.44.0.9-5ubuntu0.54.0.9-5ubuntu0.6 |
4.0.9-5ubuntu0.7 |
tiffUbuntu:Pro:14.04:LTS |
before 4.0.3-7ubuntu0.11+esm4, plus listed versions 4.0.2-4ubuntu34.0.3-5ubuntu14.0.3-64.0.3-6ubuntu14.0.3-7 Show 13 moreShow less4.0.3-7ubuntu0.14.0.3-7ubuntu0.24.0.3-7ubuntu0.34.0.3-7ubuntu0.44.0.3-7ubuntu0.64.0.3-7ubuntu0.74.0.3-7ubuntu0.84.0.3-7ubuntu0.94.0.3-7ubuntu0.104.0.3-7ubuntu0.114.0.3-7ubuntu0.11+esm14.0.3-7ubuntu0.11+esm24.0.3-7ubuntu0.11+esm3 |
4.0.3-7ubuntu0.11+esm4 |
tiffUbuntu:Pro:16.04:LTS |
before 4.0.6-1ubuntu0.8+esm4, plus listed versions 4.0.3-12.3ubuntu24.0.5-14.0.6-14.0.6-1ubuntu0.14.0.6-1ubuntu0.2 Show 9 moreShow less4.0.6-1ubuntu0.34.0.6-1ubuntu0.44.0.6-1ubuntu0.54.0.6-1ubuntu0.64.0.6-1ubuntu0.74.0.6-1ubuntu0.84.0.6-1ubuntu0.8+esm14.0.6-1ubuntu0.8+esm24.0.6-1ubuntu0.8+esm3 |
4.0.6-1ubuntu0.8+esm4 |
tiffUbuntu:20.04:LTS |
before 4.1.0+git191117-2ubuntu0.20.04.5, plus listed versions 4.0.10+git191003-14.1.0+git191117-14.1.0+git191117-24.1.0+git191117-2build14.1.0+git191117-2ubuntu0.20.04.14.1.0+git191117-2ubuntu0.20.04.24.1.0+git191117-2ubuntu0.20.04.34.1.0+git191117-2ubuntu0.20.04.4 |
4.1.0+git191117-2ubuntu0.20.04.5 |
tiffUbuntu:22.04:LTS |
before 4.3.0-6ubuntu0.1, plus listed versions 4.3.0-14.3.0-24.3.0-34.3.0-3build14.3.0-44.3.0-54.3.0-6 |
4.3.0-6ubuntu0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-19144 is a medium vulnerability (CVSS 6.5) in Simplesystems Libtiff, published September 9, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.59%, the 75th percentile. Fixed in tiff 4.0.10+git190814-1.
References
bugzilla.maptools.org/show_bug.cgi?id=2852
gitlab.com/libtiff/libtiff/-/issues/159
security.netapp.com/advisory/ntap-20211004-0005
lists.debian.org/debian-lts-announce/2021/10/msg00004.html
nvd.nist.gov/vuln/detail/CVE-2020-19144
github.com/advisories/GHSA-54q9-347p-ccwv
Show 16 moreShow less
security-tracker.debian.org/tracker/CVE-2020-19144
ubuntu.com/security/CVE-2020-19144
ubuntu.com/security/notices/USN-5523-1
ubuntu.com/security/notices/USN-5619-1
cve.org/CVERecord?id=CVE-2020-19144
ubuntu.com/security/CVE-2020-19131
ubuntu.com/security/CVE-2022-0907
ubuntu.com/security/CVE-2022-0908
ubuntu.com/security/CVE-2022-0909
ubuntu.com/security/CVE-2022-0924
ubuntu.com/security/CVE-2022-22844
ubuntu.com/security/CVE-2022-1354
ubuntu.com/security/CVE-2022-1355
ubuntu.com/security/CVE-2022-2056
ubuntu.com/security/CVE-2022-2057
ubuntu.com/security/CVE-2022-2058