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CVE-2018-20623

Publication date 31 December 2018

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

In GNU Binutils 2.31.1, there is a use-after-free in the error function in elfcomm.c when called from the process_archive function in readelf.c via a crafted ELF file.

Read the notes from the security team

Status

Package Ubuntu Release Status
binutils 24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco Ignored
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 2.30-21ubuntu1~18.04.3
16.04 LTS xenial
14.04 LTS trusty
Vulnerable

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Notes

mdeslaur

need to validate correct commit, see bug

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
binutils

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
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

References

Related Ubuntu Security Notices (USN)

    • USN-4336-1
    • GNU binutils vulnerabilities
    • 22 April 2020
    • USN-4336-2
    • GNU binutils vulnerabilities
    • 21 July 2021

Other references