CVE-2019-9705
published 2019-03-12CVE-2019-9705: Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.35%
27.3th percentile
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cron_project | cron | < 3.0pl1-133 | 3.0pl1-133 |
| cron_project | cron | >= 0 < 3.0pl1-133 | 3.0pl1-133 |
| cron_project | cron | >= 0 < 3.0pl1-133 | 3.0pl1-133 |
| cron_project | cron | >= 0 < 3.0pl1-133 | 3.0pl1-133 |
| cron_project | cron | >= 0 < 3.0pl1-133 | 3.0pl1-133 |
| cron_project | cron | >= 0 < 3.0pl1-128.1ubuntu1.2 | 3.0pl1-128.1ubuntu1.2 |
| cron_project | cron | >= 0 < 3.0pl1-128.1ubuntu1.1 | 3.0pl1-128.1ubuntu1.1 |
| cron_project | cron | >= 0 < 3.0pl1-128ubuntu2+esm2 | 3.0pl1-128ubuntu2+esm2 |
| cron_project | cron | >= 0 < 3.0pl1-128ubuntu2+esm1 | 3.0pl1-128ubuntu2+esm1 |
| debian | cron | < cron 3.0pl1-133 (bookworm) | cron 3.0pl1-133 (bookworm) |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.7MEDIUM
vendor_ubuntu6.7MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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GHSA
GHSA-3rh6-vqr9-vpx5: Vixie Cron before the 3
ghsa_unreviewed·2022-05-13
CVE-2019-9705 [MEDIUM] CWE-770 GHSA-3rh6-vqr9-vpx5: Vixie Cron before the 3
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
OSV
cron regression
osv·2022-05-11·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron regression
cron regression
USN-5259-1 and USN-5259-2 fixed vulnerabilities in Cron. Unfortunately
that update was incomplete and could introduce a regression. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could poss
OSV
cron vulnerabilities
osv·2022-05-06·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron vulnerabilities
cron vulnerabilities
USN-5259-1 fixed several vulnerabilities in Cron. This update provides
the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was dis
OSV
cron vulnerabilities
osv·2022-02-01·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron vulnerabilities
cron vulnerabilities
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was discovered that Cron contained a use-after-free vulnerability in
its force_rescan_user function. An attacker could possibly use this issue
to cause a
OSV
CVE-2019-9705: Vixie Cron before the 3
osv·2019-03-12·CVSS 5.5
CVE-2019-9705 [MEDIUM] CVE-2019-9705: Vixie Cron before the 3
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Ubuntu
Cron regression
vendor_ubuntu·2022-05-11·CVSS 6.7
CVE-2017-9525 [MEDIUM] Cron regression
Title: Cron regression
Summary: USN-5259-1 and USN-5259-2 introduced a regression in Cron.
USN-5259-1 and USN-5259-2 fixed vulnerabilities in Cron. Unfortunately
that update was incomplete and could introduce a regression. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorre
Ubuntu
Cron vulnerabilities
vendor_ubuntu·2022-05-06·CVSS 6.7
CVE-2019-9706 [MEDIUM] Cron vulnerabilities
Title: Cron vulnerabilities
Summary: Several security issues were fixed in Cron.
USN-5259-1 fixed several vulnerabilities in Cron. This update provides
the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this is
Ubuntu
Cron vulnerabilities
vendor_ubuntu·2022-02-01·CVSS 6.7
CVE-2019-9704 [MEDIUM] Cron vulnerabilities
Title: Cron vulnerabilities
Summary: Several security issues were fixed in Cron.
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was discovered that Cron contained a use-after-free vulnerability in
its force_rescan_user fu
Red Hat
vixie-cron: memory consumption DoS via a large crontab file
vendor_redhat·2019-03-08·CVSS 5.5
CVE-2019-9705 [MEDIUM] CWE-400 vixie-cron: memory consumption DoS via a large crontab file
vixie-cron: memory consumption DoS via a large crontab file
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Package: vixie-cron (Red Hat Enterprise Linux 5) - Out of support scope
Package: cronie (Red Hat Enterprise Linux 6) - Out of support scope
Package: cronie (Red Hat Enterprise Linux 7) - Will not fix
Package: cronie (Red Hat Enterprise Linux 8) - Will not fix
Debian
CVE-2019-9705: cron - Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a de...
vendor_debian·2019·CVSS 5.5
CVE-2019-9705 [MEDIUM] CVE-2019-9705: cron - Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a de...
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Scope: local
bookworm: resolved (fixed in 3.0pl1-133)
bullseye: resolved (fixed in 3.0pl1-133)
forky: resolved (fixed in 3.0pl1-133)
sid: resolved (fixed in 3.0pl1-133)
trixie: resolved (fixed in 3.0pl1-133)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-9705 cronie: vixie-cron: memory consumption DoS via a large crontab file [fedora-all]
bugzilla·2019-05-17·CVSS 5.5
CVE-2019-9705 [MEDIUM] CVE-2019-9705 cronie: vixie-cron: memory consumption DoS via a large crontab file [fedora-all]
CVE-2019-9705 cronie: vixie-cron: memory consumption DoS via a large crontab file [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 s
Bugzilla
CVE-2019-9705 vixie-cron: memory consumption DoS via a large crontab file
bugzilla·2019-03-12·CVSS 5.5
CVE-2019-9705 [MEDIUM] CVE-2019-9705 vixie-cron: memory consumption DoS via a large crontab file
CVE-2019-9705 vixie-cron: memory consumption DoS via a large crontab file
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Upstream commit:
https://salsa.debian.org/debian/cron/commit/26814a26
Discussion:
In cronie handled in 1.5.3 release.
---
Created cronie tracking bugs for this issue:
Affects: fedora-all [bug 1711356]
---
There seems to be a use case for *not* limiting the amount of cronjobs.
Aniket, may I ask you to explain the use case as you explained to me via e-mail?
Thank you.
---
There always should be a limit. The only question is how high it should be.
---
Maybe it would be wise to set the limit dynamically based on syste
http://www.securityfocus.com/bid/107378https://lists.debian.org/debian-lts-announce/2019/03/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2021/10/msg00029.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DU7HAUAQR4E4AEBPYLUV6FZ4PHKH6A2/https://salsa.debian.org/debian/cron/commit/26814a26http://www.securityfocus.com/bid/107378https://lists.debian.org/debian-lts-announce/2019/03/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2021/10/msg00029.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DU7HAUAQR4E4AEBPYLUV6FZ4PHKH6A2/https://salsa.debian.org/debian/cron/commit/26814a26
2019-03-12
Published