6.5

CVE-2018-8099: debian debian_linux Double Free

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2018-8099DEBIAN-CVE-2018-8099
Published 14-03-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-8099 is a medium (CVSS 6.5) Double Free vulnerability in debian debian_linux. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.9% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.39%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
DLA-2936-1SUSE-SU-2018:3440-1USN-8628-1

Timeline

  1. 14-03-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Incorrect returning of an error code in the index.c:read_entry() function leads to a double free in libgit2 before v0.26.2, which allows an attacker to cause a denial of service via a crafted repository index file.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.39%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

+0.01 pp

From 1.38% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Libgit21 product
Ubuntu1 product
  • libgit2< 0.19.0-2ubuntu0.4+esm2 | < 0.24.1-2ubuntu0.2+esm3 | < 0.26.0+dfsg.1-1.1ubuntu0.2+esm2

3 vendors · 4 products

References

7 links