PRIOn knowledge basePRION:CVE-2018-18751Double free
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.023 Low
EPSS
Percentile
89.5%
An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.
| CPE | Name | Operator | Version |
|---|---|---|---|
| ubuntu_linux | eq | 16.04 | |
| ubuntu_linux | eq | 14.04 | |
| ubuntu_linux | eq | 12.04 | |
| ubuntu_linux | eq | 18.04 | |
| ubuntu_linux | eq | 18.10 | |
| gettext | eq | 0.19.8 | |
| enterprise_linux | eq | 7.0 |
References
lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html
lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html
access.redhat.com/errata/RHSA-2019:3643
github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree
github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption
usn.ubuntu.com/3815-1/
usn.ubuntu.com/3815-2/
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.023 Low
EPSS
Percentile
89.5%