CVE-2005-1852: Multiple integer overflows in libgadu, as used in Kopete in KDE 3.2.3 to 3.4.1, ekg before 1.6rc3, GNU Gadu, C

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HIGH 7.5WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2005-1852 is a high-severity flaw (CVSS 7.5) affecting ekg, kde, centericq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple integer overflows in libgadu, as used in Kopete in KDE 3.2.3 to 3.4.1, ekg before 1.6rc3, GNU Gadu, CenterICQ, Kadu, and other packages, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an incoming message.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.7% (top 8%)
CISA exploited list	No
Weakness	CWE-189
Published	2005-07-26
Last modified	2026-06-16

Publisher (CNA): Debian GNU/Linux · Vendor: centericq · ekg · kadu · kde

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-07-26 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

ekg ekg DOWNGRADE

Affected: 1.0 · 1.0_rc2 · 1.0_rc3 · 1.1 · 1.1_rc1 · 1.1_rc2 · 1.3 · 1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison ekg sudo apt install ekg=<VERSION_BEFORE_1.0> sudo apt-mark hold ekg

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

dnf --showduplicates list ekg sudo dnf downgrade ekg-<VERSION_BEFORE_1.0> sudo dnf versionlock add ekg

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.

kde kde MITIGATE

Affected: 3.2.3 · 3.3 · 3.3.1 · 3.3.2 · 3.4 · 3.4.0 · 3.4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.3

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.

centericq centericq MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

kadu kadu MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2005-1852?

ekg: downgrade or apply the listed mitigation; kde: mitigate or apply the listed mitigation; centericq: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-1852 being exploited?

CVE-2005-1852 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-2005-1852 affect?

CVE-2005-1852 affects ekg, kde, centericq. Severity is high (CVSS 7.5). Multiple integer overflows in libgadu, as used in Kopete in KDE 3.2.3 to 3.4.1, ekg before 1.6rc3, GNU Gadu, CenterICQ, Kadu, and other packages, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary co

How urgent is CVE-2005-1852?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; On your watchlist

Related CVEs

CVE-2007-1665 MEDIUM 5.0 DOWNGRADE Memory leak in the token OCR functionality in ekg before 1:1.7~rc2-1etch1 on Debian GNU/Linux Etch allows remo
CVE-2007-1664 MEDIUM 5.0 DOWNGRADE ekg before 1:1.7~rc2-1etch1 on Debian GNU/Linux Etch allows remote attackers to cause a denial of service (NUL
CVE-2007-1663 MEDIUM 5.0 DOWNGRADE Memory leak in the image message functionality in ekg before 1:1.7~rc2-1etch1 on Debian GNU/Linux Etch allows
CVE-2005-2448 MEDIUM 5.0 DOWNGRADE Multiple "endianness errors" in libgadu in ekg before 1.6rc2 allow remote attackers to cause a denial of servi
CVE-2005-2370 MEDIUM 5.0 DOWNGRADE UPGRADE Multiple "memory alignment errors" in libgadu, as used in ekg before 1.6rc2, Gaim before 1.5.0, and other pack

References

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