CVE-2018-1000654
Published: 20 August 2018
GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.
Notes
| Author | Note |
|---|---|
| mdeslaur | only an issue during at build time, not at runtime. As such, marking as negigible |
| leosilva | no upstream fix as of 2018-10-09 |
| rodrigo-zaiden | upstream released a fix on 2019-07. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libtasn1-3 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
libtasn1-6 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(4.16.0-2)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(4.16.0-2)
|
|
| jammy |
Not vulnerable
(4.18.0-4)
|
|
| kinetic |
Not vulnerable
(4.18.0-4)
|
|
| lunar |
Not vulnerable
(4.18.0-4)
|
|
| mantic |
Not vulnerable
(4.18.0-4)
|
|
| trusty |
Needs triage
|
|
| upstream |
Released
(4.14)
|
|
| xenial |
Released
(4.7-3ubuntu0.16.04.3+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://gitlab.com/gnutls/libtasn1/-/commit/60a37173dd4df39bbe772895377054be28f256ab |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |