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Fencer Vulns
medium 5.3

CVE-2019-25078 json

pacparser pacparser.c pacparser_find_proxy buffer overflow

published 2022-12-13 3 y ago modified 2026-06-17 4 mo ago also PYSEC-2022-43062 , EUVD-2022-0190

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

A vulnerability classified as problematic was found in pacparser up to 1.3.x. Affected by this vulnerability is the function pacparser_find_proxy of the file src/pacparser.c. The manipulation of the argument url leads to buffer overflow. Attacking locally is a requirement. Upgrading to version 1.4.0 is able to address this issue. The name of the patch is 853e8f45607cb07b877ffd270c63dbcdd5201ad9. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215443.

Patch / fix

  • pypi pacparser 1.4.0
  • pacparser_project pacparser 1.4.0
  • pacparser Debian 14, Debian 13, Debian 12 1.3.6-1.4

debian advisories DEBIAN-CVE-2019-25078

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/manugarg/pacparser/issues/99 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi pacparser
<1.4.0
1.4.0

Affected products

  • unspecified pacparser

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-120 Buffer Copy without Checking Size of Input

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.