PT-2019-4749 · Linux+3 · Linux Kernel+3

Ori Nimron · Published 2019-09-24 · Updated 2022-10-07 · CVE-2019-17052

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions 3.16 through 5.3.2

Description The issue is related to the ax25 create function in the AF AX25 network module, which does not properly enforce the CAP NET RAW capability. This allows unprivileged users to create a raw socket, potentially compromising data integrity.

Recommendations For Linux kernel versions 3.16 through 5.3.2, consider restricting access to the ax25 create function until a patch is available. As a temporary workaround, limiting the creation of raw sockets for unprivileged users may help minimize the risk of exploitation.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

ALT-PU-2019-2838

ALT-PU-2019-2845

ALT-PU-2019-2891

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2020-01321

CVE-2019-17052

DLA-2068-1

DLA-2114-1

SUSE-SU-2019:14218-1

SUSE-SU-2019_14218-1

USN-4184-1

USN-4185-1

USN-4185-2

USN-4186-1

USN-4186-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 133

• https://osv.dev/vulnerability/DLA-2114-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-0155 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4186-2 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17052 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-17666 · Vendor Advisory
• https://usn.ubuntu.com/4186-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-12207 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17052 · Security Note
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0edc3f703f7bcaf550774b5d43ab727bcd0fe06b · Vendor Advisory
• https://usn.ubuntu.com/4184-1 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2c675dab816278a1724c1e93b384c2f05a11cb31 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-17054 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2068-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4184-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory