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AUSCERT External Security Bulletin Redistribution
ESB-2023.1904
USN-5990-1: musl vulnerabilities
31 March 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: musl
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-28928 CVE-2019-14697
Original Bulletin:
https://ubuntu.com/security/notices/USN-5990-1
Comment: CVSS (Max): 9.8 CVE-2019-14697 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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USN-5990-1: musl vulnerabilities
31 March 2023
Several security issues were fixed in musl.
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o musl - standard C library
Details
It was discovered that musl did not handle certain i386 math functions
properly. An attacker could use this vulnerability to cause a denial of
service (crash) or possibly execute arbitrary code. This issue only
affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 LTS.
( CVE-2019-14697 )
It was discovered that musl did not handle wide-character conversion
properly. A remote attacker could use this vulnerability to cause resource
consumption (infinite loop), denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04
ESM, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. ( CVE-2020-28928 )
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o musl-dev - 1.1.24-1ubuntu0.1~esm1
Available with Ubuntu Pro
o musl - 1.1.24-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 18.04
o musl-dev - 1.1.19-1ubuntu0.1~esm1
Available with Ubuntu Pro
o musl - 1.1.19-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 16.04
o musl-dev - 1.1.9-1ubuntu0.1~esm3
Available with Ubuntu Pro
o musl - 1.1.9-1ubuntu0.1~esm3
Available with Ubuntu Pro
Ubuntu 14.04
o musl-dev - 0.9.15-1ubuntu0.1~esm2
Available with Ubuntu Pro
o musl - 0.9.15-1ubuntu0.1~esm2
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-28928
o CVE-2019-14697
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