Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2018-18586

chmextract.c in the chmextract sample program, as distributed with libmspack before 0.8alpha, does not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal. NOTE: the vendor disputes that this is a libmspack vulnerability, because chmextract.c was only intended as a source-code example, not a supported application

Published

2018-10-23T02:29:00.700

Last Modified

2024-11-21T03:56:12.647

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-22

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	kyzer	libmspack	0.3	Yes
Application	kyzer	libmspack	0.4	Yes
Application	kyzer	libmspack	0.5	Yes
Application	kyzer	libmspack	0.6	Yes
Application	kyzer	libmspack	0.7	Yes

References

https://bugs.debian.org/911639 Mailing List, Third Party Advisory ([email protected])
https://github.com/kyz/libmspack/commit/7cadd489698be117c47efcadd742651594429e6d Exploit, Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/201903-20 Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2018/10/22/1 Mailing List, Third Party Advisory ([email protected])
https://bugs.debian.org/911639 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/kyz/libmspack/commit/7cadd489698be117c47efcadd742651594429e6d Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201903-20 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2018/10/22/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)