An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha....
Vulnerability 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).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://usn.ubuntu.com/3728-3/
- https://www.debian.org/security/2018/dsa-4260
- https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html
- https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a
- https://bugs.debian.org/904802
- http://www.openwall.com/lists/oss-security/2018/07/26/1
- https://access.redhat.com/errata/RHSA-2018:3505
- https://usn.ubuntu.com/3789-2/
- https://usn.ubuntu.com/3728-2/
- http://www.securitytracker.com/id/1041410
- https://usn.ubuntu.com/3728-1/
- https://access.redhat.com/errata/RHSA-2018:3327
- https://security.gentoo.org/glsa/201903-20
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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