Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2020-19144

Publication date 9 September 2021

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

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'.

Read the notes from the security team

Status

Package Ubuntu Release Status
tiff 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Fixed 4.0.9-5ubuntu0.7
16.04 LTS xenial
14.04 LTS trusty

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

Notes

mdeslaur

reproducer causes an out-of-bounds read, so DoS exact upstream fix has not been identified as of 2021-09-17

ccdm94

the fix for this issue was most likely released before the vulnerability was discovered, so version 4.1.0 of tiff is already unaffected. According to http://bugzilla.maptools.org/ show_bug.cgi?id=2848, the fix could be the one in commit 1fb9e731ef3. This is also in the Debian page for this CVE.

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-5619-1
    • LibTIFF vulnerabilities
    • 20 September 2022

Other references