CVE-2019-18932: log.c in Squid Analysis Report Generator (sarg) through 2.3.11 allows local privilege escalation

Routine

HIGH 7.0UPGRADEDOWNGRADEMITIGATE

CVE-2019-18932 is a high-severity flaw (CVSS 7.0) affecting squid analysis report generator, backports sle, leap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 fi

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.0 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-59, CWE-362
Published	2020-01-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opensuse · squid analysis report generator project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-01-21 18:15 UTCPublished CVE record published
2026-06-17 02:25 UTCUpdated Record last modified

squid analysis report generator project squid analysis report generator UPGRADE

Affected: <= 2.3.11

Fixed in: newer than 2.3.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy squid-analysis-report-generator || rpm -q squid-analysis-report-generator || squid-analysis-report-generator --version

2. UPGRADE to newer than 2.3.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade squid-analysis-report-generator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade squid-analysis-report-generator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

opensuse backports sle DOWNGRADE

Affected: 15.0 sp1

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.0

1. Check installed version

apt-cache policy backports-sle || rpm -q backports-sle || backports-sle --version

2. No fixed release: DOWNGRADE to a release before 15.0 (Debian / Ubuntu)

apt-cache madison backports-sle sudo apt install backports-sle=<VERSION_BEFORE_15.0> sudo apt-mark hold backports-sle

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list backports-sle sudo dnf downgrade backports-sle-<VERSION_BEFORE_15.0> sudo dnf versionlock add backports-sle

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

opensuse leap MITIGATE

Affected: 15.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-18932?

squid analysis report generator: upgrade to newer than 2.3.11; backports sle: downgrade or apply the listed mitigation; leap: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-18932 being exploited?

CVE-2019-18932 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-18932 affect?

CVE-2019-18932 affects squid analysis report generator, backports sle, leap. Severity is high (CVSS 7.0). 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 insec

How urgent is CVE-2019-18932?

Priority 29/100. High severity

Software pages

Squid vulnerabilities

References

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