CVE-2018-10771: Stack-based buffer overflow in the get_key function in parse.c in abcm2ps through 8.13.20 allows remote attack

Q: How do I fix CVE-2018-10771?

abcm2ps: upgrade to newer than 8.13.20; debian linux: mitigate or apply the listed mitigation; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2018-10771 being exploited?

CVE-2018-10771 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-10771 affect?

CVE-2018-10771 affects abcm2ps, debian linux, fedora. Severity is critical (CVSS 9.8). Stack-based buffer overflow in the get_key function in parse.c in abcm2ps through 8.13.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Q: How urgent is CVE-2018-10771?

Priority 71/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2018-10771 is a critical-severity flaw (CVSS 9.8) affecting abcm2ps, debian linux, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in the get_key function in parse.c in abcm2ps through 8.13.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-787
Published	2018-05-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · fedoraproject · moinejf

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

Am I affected?

Timeline

2018-05-07 02:29 UTCPublished CVE record published
2026-06-17 01:34 UTCUpdated Record last modified

moinejf abcm2ps UPGRADE

Affected: <= 8.13.20

Fixed in: newer than 8.13.20

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy abcm2ps || rpm -q abcm2ps || abcm2ps --version

2. UPGRADE to newer than 8.13.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade abcm2ps

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade abcm2ps

Note

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

debian debian linux MITIGATE

Affected: 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

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.

fedoraproject fedora MITIGATE

Affected: 30 · 31 · 32

Fixed in: no fixed release known

Safe to downgrade to: a release before 30

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · librepo · FIXED · 1.21.3-1.fc46 · FEDORA-2026-c502136ca7 · source

sudo dnf upgrade --advisory=FEDORA-2026-c502136ca7

Ubuntu 20.04 · abcm2ps · NOT AFFECTED

Ubuntu 22.04 · abcm2ps · NOT AFFECTED

Debian 12 · abcm2ps · FIXED · 8.14.2-0.1

sudo apt update && sudo apt install --only-upgrade abcm2ps dpkg --compare-versions "$(dpkg-query -W -f='${Version}' abcm2ps)" ge "8.14.2-0.1" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · abcm2ps · FIXED · 8.14.2-0.1

sudo apt update && sudo apt install --only-upgrade abcm2ps dpkg --compare-versions "$(dpkg-query -W -f='${Version}' abcm2ps)" ge "8.14.2-0.1" && echo PATCHED || echo STILL-VULNERABLE

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-2018-10771?

abcm2ps: upgrade to newer than 8.13.20; debian linux: mitigate or apply the listed mitigation; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-10771 being exploited?

CVE-2018-10771 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-2018-10771 affect?

CVE-2018-10771 affects abcm2ps, debian linux, fedora. Severity is critical (CVSS 9.8). Stack-based buffer overflow in the get_key function in parse.c in abcm2ps through 8.13.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

How urgent is CVE-2018-10771?

Priority 71/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities

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References

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