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CVE-2018-20657

Publication date 2 January 2019

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, has a memory leak via a crafted string, leading to a denial of service (memory consumption), as demonstrated by cxxfilt, a related issue to CVE-2018-12698.

Read the notes from the security team

Status

Package Ubuntu Release Status
binutils 24.04 LTS noble
Vulnerable, fix deferred
23.10 mantic Ignored
23.04 lunar Ignored
22.10 kinetic Ignored
22.04 LTS jammy
Vulnerable, fix deferred
21.10 impish Ignored
21.04 hirsute Ignored
20.10 groovy Ignored
20.04 LTS focal
Vulnerable, fix deferred
19.10 eoan Ignored
19.04 disco Ignored
18.10 cosmic Ignored
18.04 LTS bionic
Vulnerable, fix deferred
16.04 LTS xenial
Vulnerable, fix deferred
14.04 LTS trusty
Vulnerable, fix deferred

Notes

mdeslaur

10-byte memleak, not considered important to be fixed by upstream, so no patch is available as of 2023-06-02

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H