Medium severity · published Jul 28, 2018
CVE-2018-14679
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha
6.5
CVSS
3.3%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AT
Ansible Tower · Redhat
3.3 · source: NVD
CA
Cabextract · Cabextract Project
through 1.5 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
LI
Libmspack · Cabextract
0.0.20060920; 0.3; 0.4; 0.5; 0.6 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 18.04; 12.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14679
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14679
Mailing List
http://www.openwall.com/lists/oss-security/2018/07/26/1
Third Party Advisory
http://www.securitytracker.com/id/1041410
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3327
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505
Issue Tracking
https://bugs.debian.org/904802
Patch
https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a
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6.5
CVE-2018-14680
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha