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Ubuntu 18.10 USN-3916-1: Critical libsolv DoS Due to Malformed Input

ubuntu
Calendar Grey March 22, 2019
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-4027-1 details vulnerabilities in libxml2, underlining potential crashes triggered by invalid data.
Libzip could be made to crash if it received specially crafted input.

Summary

Libzip could be made to crash if it received specially crafted input.

Software Description:

- libsolv: A dependency solver using a satisfiablility algorithm

Details:

It was discovered that libsolv incorrectly handled certain malformed input. If a

user or automated system were tricked into opening a specially crafted file,

applications that rely on libsolv could be made to crash, resulting in a denial

of service.

Topics%20covered

Topics Covered

security advisory critical doS ubuntu malformed input libsolv

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
  libsolv-tools                   0.6.35-2ubuntu0.18.10.1
  libsolv0                        0.6.35-2ubuntu0.18.10.1
  libsolvext0                     0.6.35-2ubuntu0.18.10.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3916-1

CVE-2018-20532, CVE-2018-20533, CVE-2018-20534

Severity
critical
Lowest
Low
Medium
High
Critical

March 22, 2019

Topics%20covered

Topics Covered

security advisory critical doS ubuntu malformed input libsolv

Package Information

https://launchpad.net/ubuntu/+source/libsolv/0.6.35-2ubuntu0.18.10.1

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