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CVE-2015-4468· NVD / CVE Program· CNA mitre

Multiple integer overflows in the search_chunk function in chmd.c in libmspack before 0.5 allow remote attackers to cause a denial of servic

Multiple integer overflows in the search_chunk function in chmd.c in libmspack before 0.5 allow remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted CHM file.

MediumCVSS 4.3 · v2.0—No exploit Fix available
Published
Jun 11, 2015
Updated
Jun 16, 2026
EPSS
1.4% · 72th percentile
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Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

Affected systems

VendorProduct
libmspack projectlibmspack

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • libmspack project libmspackup to 0.4-3 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libmspackbefore 0.4-30.4-3
SUSE:Linux Enterprise Desktop 12libmspackbefore 0.4-14.40.4-14.4

Same product

libmspack project: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-4472Off-by-one error in the READ_ENCINT macro in chmd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (applicatio
    27Monitor
  • CVE-2014-9556Integer overflow in the qtmd_decompress function in libmspack 0.4 allows remote attackers to cause a denial of service (hang) via a crafted
    21Monitor
  • CVE-2014-9732The cabd_extract function in cabd.c in libmspack before 0.5 does not properly maintain decompression callbacks in certain cases where an inv
    19Monitor
  • CVE-2015-4471Off-by-one error in the lzxd_decompress function in lzxd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (buf
    18Monitor
  • CVE-2015-4470Off-by-one error in the inflate function in mszipd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (buffer ov
    17Monitor
  • CVE-2015-4469The chmd_read_headers function in chmd.c in libmspack before 0.5 does not validate name lengths, which allows remote attackers to cause a de
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libmspack0.4-3 · Debian:12Package registry (OSV)
suse:libmspack0.4-14.4 · SUSE:Linux Enterprise Desktop 12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    P

    Weakness class (CWE)

    CWE-189 · Numeric Errors

    CVSS vector

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

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Noroxi analysis

    No Noroxi analysis for this record yet

    We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

    We use this product, ask for help

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records