CVE-2020-27350: APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169,

Routine

MEDIUM 5.7WATCHLISTUPGRADEMITIGATE

CVE-2020-27350 is a medium-severity flaw (CVSS 5.7) affecting advanced package tool, solidfire baseboard management controller firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-190
Published	2020-12-10
Last modified	2026-06-17

Publisher (CNA): Canonical Ltd. · Vendor: debian · netapp

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

Am I affected?

Timeline

2020-12-10 04:15 UTCPublished CVE record published
2026-06-17 03:09 UTCUpdated Record last modified

debian advanced package tool UPGRADE

Affected: >= 1.2.32ubuntu0 and < 1.2.32ubuntu0.2 · >= 1.6.12ubuntu0 and < 1.6.12ubuntu0.2 · >= 2.0.2ubuntu0 and < 2.0.2ubuntu0.2 · >= 2.1.10ubuntu0 and < 2.1.10ubuntu0.2 · < 1.8.2.2

Fixed in: 1.2.32ubuntu0.2, 1.6.12ubuntu0.2, 1.8.2.2, 2.0.2ubuntu0.2, 2.1.10ubuntu0.2

Safe to downgrade to: a release before 1.2.32ubuntu0

1. Check installed version

apt-cache policy advanced-package-tool || rpm -q advanced-package-tool || advanced-package-tool --version

2. UPGRADE to 1.2.32ubuntu0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advanced-package-tool

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advanced-package-tool

Note

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

3. If no update is available yet, DOWNGRADE to a release before 1.2.32ubuntu0 (Debian / Ubuntu)

apt-cache madison advanced-package-tool sudo apt install advanced-package-tool=<VERSION_BEFORE_1.2.32ubuntu0> sudo apt-mark hold advanced-package-tool

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list advanced-package-tool sudo dnf downgrade advanced-package-tool-<VERSION_BEFORE_1.2.32ubuntu0> sudo dnf versionlock add advanced-package-tool

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.

netapp solidfire baseboard management controller firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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-2020-27350?

advanced package tool: upgrade to 1.2.32ubuntu0.2, 1.6.12ubuntu0.2, 1.8.2.2, 2.0.2ubuntu0.2, 2.1.10ubuntu0.2; solidfire baseboard management controller firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-27350 being exploited?

CVE-2020-27350 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-2020-27350 affect?

CVE-2020-27350 affects advanced package tool, solidfire baseboard management controller firmware. Severity is medium (CVSS 5.7). APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubun

How urgent is CVE-2020-27350?

Priority 33/100. On your watchlist

Software pages

Debian vulnerabilities

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References

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