Ubuntu Security Notices
Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.
To report a security vulnerability in an Ubuntu package, please contact the Security Team.
The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.
Search USNs
USN ID, name, description or CVE ID contains
111 - 120 of 229 results
26 February 2021
Firefox could be made to crash or run programs as your login if it opened a malicious website.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-23971, CVE-2021-23973, CVE-2021-23970 + 7 others
25 February 2021
Several security issues were fixed in LibTIFF.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
25 February 2021
Python could be made to execute arbitrary code or denial of service if it received a specially crafted input.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
25 February 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.10 ,
- 20.04 LTS
CVE ID
CVE-2020-25704, CVE-2020-28588, CVE-2020-29660 + 15 others
24 February 2021
GNU Screen could be made to crash or run programs if it processed specially crafted character sequences.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
24 February 2021
xterm could be made to crash or run programs if it handled specially crafted character sequences.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
24 February 2021
USN-4698-1 introduced regressions in Dnsmasq.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
22 February 2021
USN-4467-1 introduced a regression in QEMU.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
22 February 2021
OpenLDAP could be made to crash if it received specially crafted network traffic.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
22 February 2021
GDK-PixBuf could be made to crash if it opened a specially crafted file.
- Ubuntu 20.10 ,
- 20.04 LTS
CVE ID
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