CVE-2017-6419
published 2017-08-07CVE-2017-6419: mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application…
PriorityP433high7.8CVSS 3.0
AVLACLPRNUIRSUCHIHAH
EPSS
1.98%
78.3th percentile
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| clamav | clamav | >= 0 < 0.99.3~beta1+dfsg-1 | 0.99.3~beta1+dfsg-1 |
| clamav | clamav | >= 0 < 0.99.3~beta1+dfsg-1 | 0.99.3~beta1+dfsg-1 |
| clamav | clamav | >= 0 < 0.99.3~beta1+dfsg-1 | 0.99.3~beta1+dfsg-1 |
| clamav | clamav | >= 0 < 0.99.3~beta1+dfsg-1 | 0.99.3~beta1+dfsg-1 |
| clamav | clamav | >= 0 < 0.99.2+addedllvm-0ubuntu0.14.04.2 | 0.99.2+addedllvm-0ubuntu0.14.04.2 |
| clamav | clamav | >= 0 < 0.99.2+dfsg-0ubuntu0.16.04.2 | 0.99.2+dfsg-0ubuntu0.16.04.2 |
| debian | clamav | < clamav 0.99.3~beta1+dfsg-1 (bookworm) | clamav 0.99.3~beta1+dfsg-1 (bookworm) |
| debian | libmspack | < clamav 0.99.3~beta1+dfsg-1 (bookworm) | clamav 0.99.3~beta1+dfsg-1 (bookworm) |
| libmspack_project | libmspack | — | — |
| libmspack_project | libmspack | >= 0 < 0.6-1 | 0.6-1 |
| libmspack_project | libmspack | >= 0 < 0.6-1 | 0.6-1 |
| libmspack_project | libmspack | >= 0 < 0.6-1 | 0.6-1 |
| libmspack_project | libmspack | >= 0 < 0.6-1 | 0.6-1 |
| libmspack_project | libmspack | >= 0 < 0.5-1ubuntu0.16.04.1 | 0.5-1ubuntu0.16.04.1 |
| libmspack_project | libmspack | >= 0 < 0.4-1ubuntu0.1~esm2 | 0.4-1ubuntu0.1~esm2 |
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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Ubuntu
libmspack vulnerabilities
vendor_ubuntu·2025-10-01·CVSS 4.3
CVE-2018-14679 [MEDIUM] libmspack vulnerabilities
Title: libmspack vulnerabilities
Summary: Several security issues were fixed in libmspack.
Jakub Wilk discovered that libmspack did not correctly handle certain
integer operations and bounds checking. A remote attacker could possibly
use this issue to cause a denial of service. (CVE-2015-4467, CVE-2015-4468,
CVE-2015-4469, CVE-2015-4472)
It was discovered that libmspack incorrectly handled certain malformed CAB
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service. (CVE-2017-11423)
It was discovered that libmspack incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-6419)
Hanno Böck discove
Ubuntu
libmspack vulnerabilities
vendor_ubuntu·2017-08-17·CVSS 7.8
CVE-2017-11423 [HIGH] libmspack vulnerabilities
Title: libmspack vulnerabilities
Summary: Several security issues were fixed in libmspack.
It was discovered that libmspack incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-6419)
It was discovered that libmspack incorrectly handled certain malformed CAB
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service. (CVE-2017-6419)
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
ClamAV vulnerabilities
vendor_ubuntu·2017-08-17·CVSS 5.5
CVE-2017-6418 [MEDIUM] ClamAV vulnerabilities
Title: ClamAV vulnerabilities
Summary: Several security issues were fixed in ClamAV.
It was discovered that ClamAV incorrectly handled parsing certain e-mail
messages. A remote attacker could possibly use this issue to cause ClamAV
to crash, resulting in a denial of service. (CVE-2017-6418)
It was discovered that ClamAV incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause ClamAV to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 14.04 LTS. In the default installation,
attackers would be isolated by the ClamAV AppArmor profile. (CVE-2017-6419)
It was discovered that ClamAV incorrectly handled parsing certain PE files
with WWPack compression. A remote attacker could possibly use this
Ubuntu
ClamAV vulnerabilities
vendor_ubuntu·2017-08-17·CVSS 5.5
CVE-2017-6418 [MEDIUM] ClamAV vulnerabilities
Title: ClamAV vulnerabilities
Summary: Several security issues were fixed in ClamAV.
USN-3393-1 fixed several vulnerabilities in ClamAV. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that ClamAV incorrectly handled parsing certain e-mail
messages. A remote attacker could possibly use this issue to cause ClamAV
to crash, resulting in a denial of service. (CVE-2017-6418)
It was discovered that ClamAV incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause ClamAV to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 14.04 LTS. In the default installation,
attackers would be isolated by the ClamAV AppArmor profile. (CVE-2017-
Red Hat
clamav: heap-based buffer overflow in mspack/lzxd.c
vendor_redhat·2017-03-29·CVSS 7.8
CVE-2017-6419 [HIGH] CWE-122 clamav: heap-based buffer overflow in mspack/lzxd.c
clamav: heap-based buffer overflow in mspack/lzxd.c
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
Package: libmspack (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2017-6419: clamav - mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote att...
vendor_debian·2017·CVSS 7.8
CVE-2017-6419 [HIGH] CVE-2017-6419: clamav - mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote att...
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
Scope: local
bookworm: resolved (fixed in 0.99.3~beta1+dfsg-1)
bullseye: resolved (fixed in 0.99.3~beta1+dfsg-1)
forky: resolved (fixed in 0.99.3~beta1+dfsg-1)
sid: resolved (fixed in 0.99.3~beta1+dfsg-1)
trixie: resolved (fixed in 0.99.3~beta1+dfsg-1)
OSV
libmspack vulnerabilities
osv·2025-10-01·CVSS 4.3
CVE-2015-4467 [MEDIUM] libmspack vulnerabilities
libmspack vulnerabilities
Jakub Wilk discovered that libmspack did not correctly handle certain
integer operations and bounds checking. A remote attacker could possibly
use this issue to cause a denial of service. (CVE-2015-4467, CVE-2015-4468,
CVE-2015-4469, CVE-2015-4472)
It was discovered that libmspack incorrectly handled certain malformed CAB
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service. (CVE-2017-11423)
It was discovered that libmspack incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-6419)
Hanno Böck discovered that libmspack incorrectly handled certain CHM files.
An attac
GHSA
GHSA-x569-chqv-xjj7: mspack/lzxd
ghsa_unreviewed·2022-05-14
CVE-2017-6419 [HIGH] CWE-119 GHSA-x569-chqv-xjj7: mspack/lzxd
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
OSV
clamav vulnerabilities
osv·2017-08-17·CVSS 5.5
CVE-2017-6418 [MEDIUM] clamav vulnerabilities
clamav vulnerabilities
It was discovered that ClamAV incorrectly handled parsing certain e-mail
messages. A remote attacker could possibly use this issue to cause ClamAV
to crash, resulting in a denial of service. (CVE-2017-6418)
It was discovered that ClamAV incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause ClamAV to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 14.04 LTS. In the default installation,
attackers would be isolated by the ClamAV AppArmor profile. (CVE-2017-6419)
It was discovered that ClamAV incorrectly handled parsing certain PE files
with WWPack compression. A remote attacker could possibly use this issue to
cause ClamAV to crash, resulting in a denial of servic
OSV
libmspack vulnerabilities
osv·2017-08-17·CVSS 7.8
CVE-2017-6419 [HIGH] libmspack vulnerabilities
libmspack vulnerabilities
It was discovered that libmspack incorrectly handled certain malformed CHM
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-6419)
It was discovered that libmspack incorrectly handled certain malformed CAB
files. A remote attacker could use this issue to cause libmspack to crash,
resulting in a denial of service. (CVE-2017-6419)
OSV
CVE-2017-6419: mspack/lzxd
osv·2017-08-07·CVSS 7.8
CVE-2017-6419 [HIGH] CVE-2017-6419: mspack/lzxd
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [epel-all]
bugzilla·2017-08-22·CVSS 5.5
CVE-2017-6418 [MEDIUM] CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [epel-all]
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of F
Bugzilla
CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [epel-all]
bugzilla·2017-08-22·CVSS 5.5
CVE-2017-11423 [MEDIUM] CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [epel-all]
CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora EPEL
Bugzilla
CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c
bugzilla·2017-08-22·CVSS 7.8
CVE-2017-6419 [HIGH] CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c
CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows
remote attackers to cause a denial of service (heap-based buffer
overflow and application crash) or possibly have unspecified other
impact via a crafted CHM file.
Upstream patch:
https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1
Discussion:
Created clamav tracking bugs for this issue:
Affects: epel-all [bug 1483912]
Affects: fedora-all [bug 1483911]
---
Created libmspack tracking bugs for this issue:
Affects: fedora-all [bug 1483999]
---
Created libmspack tracking bugs for this issue:
Affects: epel-all [bug 1484000]
---
Same as bug 1472776#c7 libclamav/libmspack.c only exist in clamav 0.99.3 [
Bugzilla
CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [fedora-all]
bugzilla·2017-08-22·CVSS 5.5
CVE-2017-11423 [MEDIUM] CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [fedora-all]
CVE-2017-11423 CVE-2017-6419 libmspack: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora.
Bugzilla
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [fedora-all]
bugzilla·2017-08-22·CVSS 5.5
CVE-2017-6418 [MEDIUM] CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [fedora-all]
CVE-2017-6418 CVE-2017-6419 CVE-2017-6420 clamav: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions
http://www.debian.org/security/2017/dsa-3946https://bugzilla.clamav.net/show_bug.cgi?id=11701https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.mdhttps://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1https://lists.debian.org/debian-lts-announce/2018/02/msg00014.htmlhttps://security.gentoo.org/glsa/201804-16http://www.debian.org/security/2017/dsa-3946https://bugzilla.clamav.net/show_bug.cgi?id=11701https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.mdhttps://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1https://lists.debian.org/debian-lts-announce/2018/02/msg00014.htmlhttps://security.gentoo.org/glsa/201804-16
2017-08-07
Published