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Fencer Vulns
high 7.0

CVE-2019-18932 json

log.c in Squid Analysis Report Generator (sarg) through 2.3.11 allows local privilege escalation.

published 2020-01-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8605

cvss
7.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

log.c in Squid Analysis Report Generator (sarg) through 2.3.11 allows local privilege escalation. By default, it uses a fixed temporary directory /tmp/sarg. As the root user, sarg creates this directory or reuses an existing one in an insecure manner. An attacker can pre-create the directory, and place symlinks in it (after winning a /tmp/sarg/denied.int_unsort race condition). The outcome will be corrupted or newly created files in privileged file system locations.

Patch / fix

  • sarg Debian 14, Debian 13, Debian 12 2.4.0-1

debian advisories DEBIAN-CVE-2019-18932

  • sarg Package Hub 15 SP1 2.3.10-bp151.4.3.1
  • sarg openSUSE Leap 15.1 2.3.10-lp151.3.3.1

opensuse advisories openSUSE-SU-2020:0140-1openSUSE-SU-2020:0117-1

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

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.