CVE-2018-0493
published 2018-04-03CVE-2018-0493: remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon…
PriorityP341high7.2CVSS 3.0
AVNACLPRHUINSUCHIHAH
EPSS
2.55%
83.5th percentile
remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | remctl | < remctl 3.14-1 (bookworm) | remctl 3.14-1 (bookworm) |
| eyrie | remctl | < 3.14 | 3.14 |
| eyrie | remctl | — | — |
| eyrie | remctl | >= 0 < 3.14-1 | 3.14-1 |
| eyrie | remctl | >= 0 < 3.14-1 | 3.14-1 |
| eyrie | remctl | >= 0 < 3.14-1 | 3.14-1 |
| eyrie | remctl | >= 0 < 3.14-1 | 3.14-1 |
CVSS provenance
nvdv3.07.2HIGHCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
osv7.2HIGH
vendor_debian7.2HIGH
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GHSA
GHSA-5h2w-vxv5-92f3: remctld in remctl before 3
ghsa_unreviewed·2022-05-14
CVE-2018-0493 [HIGH] CWE-416 GHSA-5h2w-vxv5-92f3: remctld in remctl before 3
remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.
OSV
CVE-2018-0493: remctld in remctl before 3
osv·2018-04-03·CVSS 7.2
CVE-2018-0493 [HIGH] CVE-2018-0493: remctld in remctl before 3
remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.
Debian
CVE-2018-0493: remctl - remctld in remctl before 3.14, when an attacker is authorized to execute a comma...
vendor_debian·2018·CVSS 7.2
CVE-2018-0493 [HIGH] CVE-2018-0493: remctl - remctld in remctl before 3.14, when an attacker is authorized to execute a comma...
remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.
Scope: local
bookworm: resolved (fixed in 3.14-1)
bullseye: resolved (fixed in 3.14-1)
forky: resolved (fixed in 3.14-1)
sid: resolved (fixed in 3.14-1)
trixie: resolved (fixed in 3.14-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution.
bugzilla·2018-04-03·CVSS 7.2
CVE-2018-0493 [HIGH] CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution.
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution.
An incorrect memory management was found in the remctld and remctl-shell servers when handling commands with the sudo configuration option. For remctld, it may be possible (although appears to be difficult) for a client to execute arbitrary commands on the server. To exploit this vulnerability, the client must have access to run a command that uses the sudo configuration option. The client would then need to run the command using sudo multiple times in a single connection using keep-alive.
External References:
https://www.eyrie.org/~eagle/software/remctl/security/2018-04-01.html
Upstream patch:
https://git.eyrie.org/?p=kerberos/remctl.git;a=commit;h=86c7e44090c988112a3758
Bugzilla
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [epel-all]
bugzilla·2018-04-03·CVSS 7.2
CVE-2018-0493 [HIGH] CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [epel-all]
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [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:
Bugzilla
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [fedora-all]
bugzilla·2018-04-03·CVSS 7.2
CVE-2018-0493 [HIGH] CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [fedora-all]
CVE-2018-0493 remctl: Use-after-free leading to a daemon crash, memory corruption, or arbitrary command execution. [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.
NO
https://git.eyrie.org/?p=kerberos/remctl.git%3Ba=commit%3Bh=86c7e44090c988112a37589d2c7a94029eb5e641https://www.debian.org/security/2018/dsa-4159https://www.eyrie.org/~eagle/software/remctl/security/2018-04-01.htmlhttps://git.eyrie.org/?p=kerberos/remctl.git%3Ba=commit%3Bh=86c7e44090c988112a37589d2c7a94029eb5e641https://www.debian.org/security/2018/dsa-4159https://www.eyrie.org/~eagle/software/remctl/security/2018-04-01.html
2018-04-03
Published