LHa: Buffer overflow — GLSA 202007-42

LHa has a buffer overflow in its compression utility with unspecified impact.

Affected packages

app-arch/lha on all architectures
Affected versions < 114i_p20201004
Unaffected versions >= 114i_p20201004

Background

LHa is a console-based program for packing and unpacking LHarc archives.

Description

A buffer overflow in LHa’s compression code was discovered which can be triggered by a crafted input file.

Impact

A remote attacker could send a specially crafted file possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All LHa users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/lha-114i_p20201004"
 

References

Release date
July 27, 2020

Latest revision
July 27, 2020: 1

Severity
normal

Exploitable
remote

Bugzilla entries