CVE-2017-6420 — Use After Free in Clamav

CWE-416 — Use After Free10 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.3%
top 47.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
ClamavDebian Clamav
Timeline
PublishedAug 7
Latest updateMay 14

Description

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/clamav< clamav 0.99.3~beta1+dfsg-1 (bookworm)
▶Debianclamav/clamav< 0.99.3~beta1+dfsg-1+3
▶Ubuntuclamav/clamav< 0.99.2+addedllvm-0ubuntu0.14.04.2+1
▶NVDclamav/clamav0.99.2

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-6v8q-f99w-979p: The wwunpack function in libclamav/wwunpack↗2022-05-14
▶
OSV
clamav vulnerabilities↗2017-08-17
▶
OSV
CVE-2017-6420: The wwunpack function in libclamav/wwunpack↗2017-08-07
▶

📋Vendor Advisories

3
Ubuntu
ClamAV vulnerabilities↗2017-08-17
▶
Ubuntu
ClamAV vulnerabilities↗2017-08-17
▶
Debian
CVE-2017-6420: clamav - The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote att...↗2017
▶

💬Community

3
Bugzilla
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [epel-all]↗2017-08-22
▶
Bugzilla
CVE-2017-6420 clamav: use-after-free in wwunpack function↗2017-08-22
▶
Bugzilla
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [fedora-all]↗2017-08-22
▶