CVE-2015-8790: n/a vulnerability

CVE-2015-8790: The EbmlUnicodeString::UpdateFromUTF8 function in libEBML before 1.3.3 allows context-dependent attackers t...

The EbmlUnicodeString::UpdateFromUTF8 function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted UTF-8 string, which triggers an invalid memory access.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 08:29 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects libEBML before 1.3.3, a library used to parse EBML/Matroska-style data. A specially crafted UTF-8 string can make the process read invalid heap memory and expose sensitive data. The sources identify upstream and Linux distribution fixes, but do not show active exploitation. Exposure is most likely where servers, desktop applications, or media-processing pipelines parse untrusted EBML or Matroska content using libEBML before 1.3.3. The bundle does not identify specific downstream applications or CPEs. Treat this as a targeted remediation item for media-processing environments rather than an internet-wide emergency. Prioritize systems that process untrusted media, especially shared services where heap disclosure could expose other users' data. Mitigation focus: Upgrade libEBML to version 1.3.3 or later.; Apply Debian DSA-3538 packages where Debian packages are used.; Apply openSUSE-SU-2016:0125 packages where openSUSE packages are used..

Prepared: Jun 13, 2026, 21:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 29, 2016, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/Matroska-Org/libebml/commit/ababb64e0c792ad2a314245233db0833ba12036bCVE reference · x_refsource_CONFIRM
https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLogCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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