Low: libmspack

Issue Overview:

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.(CVE-2018-14682)

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. It does not reject blank CHM filenames.(CVE-2018-14680)

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).(CVE-2018-14679)

An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.(CVE-2018-14681)

Affected Packages:

libmspack

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update libmspack to update your system.

New Packages:

aarch64:  
    libmspack-0.5-0.6.alpha.amzn2.0.1.aarch64  
    libmspack-devel-0.5-0.6.alpha.amzn2.0.1.aarch64  
    libmspack-debuginfo-0.5-0.6.alpha.amzn2.0.1.aarch64  
  
i686:  
    libmspack-0.5-0.6.alpha.amzn2.0.1.i686  
    libmspack-devel-0.5-0.6.alpha.amzn2.0.1.i686  
    libmspack-debuginfo-0.5-0.6.alpha.amzn2.0.1.i686  
  
src:  
    libmspack-0.5-0.6.alpha.amzn2.0.1.src  
  
x86_64:  
    libmspack-0.5-0.6.alpha.amzn2.0.1.x86_64  
    libmspack-devel-0.5-0.6.alpha.amzn2.0.1.x86_64  
    libmspack-debuginfo-0.5-0.6.alpha.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2018-14679, CVE-2018-14680, CVE-2018-14681, CVE-2018-14682

Mitre: CVE-2018-14679, CVE-2018-14680, CVE-2018-14681, CVE-2018-14682