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AUSCERT External Security Bulletin Redistribution
ESB-2023.4956
USN-6322-1: elfutils vulnerabilities
31 August 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: elfutils
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2021-33294 CVE-2020-21047 CVE-2019-7665
CVE-2019-7150 CVE-2019-7149 CVE-2018-18521
CVE-2018-18520 CVE-2018-18310 CVE-2018-16403
CVE-2018-16062
Original Bulletin:
https://ubuntu.com/security/notices/USN-6322-1
Comment: CVSS (Max): 6.5 CVE-2019-7149 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CVSS Source: NIST
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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USN-6322-1: elfutils vulnerabilities
30 August 2023
Several security issues were fixed in elfutils.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 ESM
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o elfutils - collection of utilities to handle ELF objects
Details
It was discovered that elfutils incorrectly handled certain malformed
files. If a user or automated system were tricked into processing a
specially crafted file, elfutils could be made to crash or consume
resources, resulting in a denial of service. This issue only affected
Ubuntu 14.04 LTS. ( CVE-2018-16062 , CVE-2018-16403 , CVE-2018-18310 ,
CVE-2018-18520 , CVE-2018-18521 , CVE-2019-7149 , CVE-2019-7150 ,
CVE-2019-7665 )
It was discovered that elfutils incorrectly handled bounds checks in
certain functions when processing malformed files. If a user or automated
system were tricked into processing a specially crafted file, elfutils
could be made to crash or consume resources, resulting in a denial of
service. ( CVE-2020-21047 , CVE-2021-33294 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o elfutils - 0.176-1.1ubuntu0.1
o libasm1 - 0.176-1.1ubuntu0.1
o libdw1 - 0.176-1.1ubuntu0.1
o libelf1 - 0.176-1.1ubuntu0.1
Ubuntu 18.04
o elfutils - 0.170-0.4ubuntu0.1+esm1
Available with Ubuntu Pro
o libasm1 - 0.170-0.4ubuntu0.1+esm1
Available with Ubuntu Pro
o libdw1 - 0.170-0.4ubuntu0.1+esm1
Available with Ubuntu Pro
o libelf1 - 0.170-0.4ubuntu0.1+esm1
Available with Ubuntu Pro
Ubuntu 16.04
o elfutils - 0.165-3ubuntu1.2+esm1
Available with Ubuntu Pro
o libasm1 - 0.165-3ubuntu1.2+esm1
Available with Ubuntu Pro
o libdw1 - 0.165-3ubuntu1.2+esm1
Available with Ubuntu Pro
o libelf1 - 0.165-3ubuntu1.2+esm1
Available with Ubuntu Pro
Ubuntu 14.04
o elfutils - 0.158-0ubuntu5.3+esm1
Available with Ubuntu Pro
o libasm1 - 0.158-0ubuntu5.3+esm1
Available with Ubuntu Pro
o libdw1 - 0.158-0ubuntu5.3+esm1
Available with Ubuntu Pro
o libelf1 - 0.158-0ubuntu5.3+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-33294
o CVE-2020-21047
o CVE-2018-18521
o CVE-2018-18520
o CVE-2019-7665
o CVE-2018-16062
o CVE-2019-7150
o CVE-2018-16403
o CVE-2019-7149
o CVE-2018-18310
Related notices
o USN-4012-1 : libdw-dev, elfutils, libelf-dev, libelf1, libasm1, libasm-dev,
libdw1
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