4.3

CVE-2015-8791: matroska libebml

Modified
AliasesUBUNTU-CVE-2015-8791DEBIAN-CVE-2015-8791
Published 29-01-2016Last modified 06-08-2024

Vulnerability summary

CVE-2015-8791 is a medium (CVSS 4.3) vulnerability in matroska libebml. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 71.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v3.0 (NVD)
EPSS score
1.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DLA-438-1DSA-3538-1

Timeline

  1. 29-01-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted length value in an EBML id, which triggers an invalid memory access.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.34%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.34% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • libebml< 1.3.3-1
Matroska1 product
Ubuntu1 product
  • libebml< 1.3.0-2+deb8u1build0.14.04.1

3 vendors · 3 products

References

8 links