Out-of-bounds write in Linux kernel

1) Out-of-bounds write

EUVDB-ID: #VU95668

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2001-1399

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to corrupt data.

Certain operations in Linux kernel before 2.2.19 on the x86 architecture copy the wrong number of bytes, which might allow attackers to modify memory, aka 'User access asm bug on x86.'

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://marc.info/?l=bugtraq&m=98575345009963&w=2
https://marc.info/?l=bugtraq&m=98637996127004&w=2
https://marc.info/?l=bugtraq&m=98653252326445&w=2
https://marc.info/?l=bugtraq&m=98684172109474&w=2
https://marc.info/?l=bugtraq&m=98759029811377&w=2
https://marc.info/?l=bugtraq&m=98775114228203&w=2
https://marc.info/?l=bugtraq&m=99013830726309&w=2
https://www.linux.org.uk/VERSION/relnotes.2219.html
https://www.redhat.com/support/errata/RHSA-2001-047.html
https://www.debian.org/security/2001/dsa-047

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.