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Fencer Vulns
high 8.2

CVE-2024-39720 json

Ollama Out-of-bounds Read

published 2024-10-31 2 y ago modified 2026-06-17 4 mo ago also GHSA-95j2-w8x7-hm88 , GO-2024-3245 , EUVD-2024-3003

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An issue was discovered in Ollama before 0.1.46. An attacker can use two HTTP requests to upload a malformed GGUF file containing just 4 bytes starting with the GGUF custom magic header. By leveraging a custom Modelfile that includes a FROM statement pointing to the attacker-controlled blob file, the attacker can crash the application through the CreateModel route, leading to a segmentation fault (signal SIGSEGV: segmentation violation).

Patch / fix

  • go github.com/ollama/ollama 0.1.46
  • ollama ollama 0.1.46
  • govulncheck-vulndb SLE Module for Package Hub 15 SP6, SLE Module for Package Hub 15 SP5, openSUSE Leap 15.6 +1 more 0.0.20241104T154416-150000.1.12.1

suse advisories SUSE-SU-2024:3950-1

  • zed openSUSE Tumbleweed 1.24.2-1.1
  • govulncheck-vulndb Package Hub 12 0.0.20241104T154416-5.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20241101T215616-1.1

opensuse advisories openSUSE-SU-2026:12355-1openSUSE-SU-2024:0350-1openSUSE-SU-2024:14452-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.44% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • oligo.security https://oligo.security/blog/more-models-more-probllms referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
GitHub 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/ollama/ollama
<0.1.46
0.1.46

Affected products

  • ollama ollama

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.