PT-2020-6839 · Linux+4 · Linux Kernel+4

Yunhai Zhang · Published 2020-07-28 · Updated 2024-06-15 · CVE-2020-14331

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the Linux kernel's video driver, specifically the vgacon scrollback cur() function, which is vulnerable to an out-of-bounds write. This can be exploited by a local attacker when resizing the console, potentially leading to a system crash and possibly escalating privileges. The main concerns are data confidentiality, integrity, and system availability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2020-2659

ALT-PU-2020-2660

ALT-PU-2020-2688

ALT-PU-2020-2695

ALT-PU-2020-2710

ALT-PU-2020-2716

ALT-PU-2020-2726

ALT-PU-2020-2732

ALT-PU-2020-2770

ALT-PU-2020-3057

ALT-PU-2020-3210

ALT-PU-2021-1083

ALT-PU-2021-1105

ALT-PU-2021-1621

ALT-PU-2021-1656

ALT-PU-2021-1739

ALT-PU-2021-1745

ALT-PU-2021-1862

ALT-PU-2021-1866

ALT-PU-2021-1870

BDU:2023-00700

CESA-2020_4286

CESA-2020_4289

CESA-2020_5023

CVE-2020-14331

DLA-2385-1

DLA-2420-1

DLA-2420-2

OPENSUSE-SU-2020:1153-1

OPENSUSE-SU-2020:1236-1

OPENSUSE-SU-2020:1325-1

OPENSUSE-SU-2020_1153-1

OPENSUSE-SU-2020_1236-1

OPENSUSE-SU-2020_1325-1

OPENSUSE-SU-2021:0242-1

OPENSUSE-SU-2021_0242-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

RHSA-2020:4286

RHSA-2020:4289

RHSA-2020:5023

RHSA-2020:5026

RHSA-2020_4286

RHSA-2020_4289

RHSA-2020_5023

RHSA-2020_5026

SUSE-SU-2020:2102-1

SUSE-SU-2020:2119-1

SUSE-SU-2020:2122-1

SUSE-SU-2020:2486-1

SUSE-SU-2020:2491-1

SUSE-SU-2020:2492-1

SUSE-SU-2020:2497-1

SUSE-SU-2020:2498-1

SUSE-SU-2020:2499-1

SUSE-SU-2020:2502-1

SUSE-SU-2020:2505-1

SUSE-SU-2020:2506-1

SUSE-SU-2020:2507-1

SUSE-SU-2020:2508-1

SUSE-SU-2020:2509-1

SUSE-SU-2020:2513-1

SUSE-SU-2020:2515-1

SUSE-SU-2020:2517-1

SUSE-SU-2020:2524-1

SUSE-SU-2020:2525-1

SUSE-SU-2020:2526-1

SUSE-SU-2020:2531-1

SUSE-SU-2020:2534-1

SUSE-SU-2020:2537-1

SUSE-SU-2020:2540-1

SUSE-SU-2020:2541-1

SUSE-SU-2020:2574-1

SUSE-SU-2020:2575-1

SUSE-SU-2020:2576-1

SUSE-SU-2020:2582-1

SUSE-SU-2020:2605-1

SUSE-SU-2020:2610-1

SUSE-SU-2020:2623-1

SUSE-SU-2020:2631-1

SUSE-SU-2020_2515-1

SUSE-SU-2020_2517-1

SUSE-SU-2020_2534-1

SUSE-SU-2020_2537-1

SUSE-SU-2021:14630-1

SUSE-SU-2021_14630-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 1299

• 🔥 https://openwall.com/lists/oss-security/2020/07/28/2 · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2020:2631-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2534-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2526-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2540-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2508-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2513-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-14331 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2537-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1236-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14331 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2020:2582-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1153-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2524-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-5866.html · Vendor Advisory