PT-2021-7075 · Linux+1 · Linux Kernel+1

Jason Xing + 1 · Published 2018-11-12 · Updated 2022-10-27 · CVE-2022-1678

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux Kernel versions 4.18 through 4.19

Description An issue in the Linux Kernel can lead to memory/netns leak due to an improper update of sock reference in TCP pacing. This can be exploited by remote clients, potentially causing a denial of service. The issue is related to errors in memory usage after release in the TCP Pace Handler component, specifically in the tcp internal pacing function in the net/ipv4/tcp output.c file.

Recommendations For Linux Kernel versions 4.18 through 4.19, consider disabling the tcp internal pacing function as a temporary workaround to minimize the risk of exploitation. Restrict access to the TCP Pace Handler component to reduce the likelihood of remote clients causing a denial of service. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-911

CWE-401

Related Identifiers

ALT-PU-2018-2631

ALT-PU-2018-2699

BDU:2022-03207

CVE-2022-1678

Affected Products

Alt Linux

Linux Kernel

References · 19

• 🔥 https://lore.kernel.org/all/[e-mail] · Exploit
• https://github.com/torvalds/linux/commit/0a70f118475e037732557796accd0878a00fc25a · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-1678 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-1678 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-1678 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1678 · Vendor Advisory
• https://bugzilla.openanolis.cn/show_bug.cgi?id=61 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-1678 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03207 · Security Note
• https://osv.dev/vulnerability/CVE-2022-1678 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-1678 · Security Note
• https://security.netapp.com/advisory/ntap-20220715-0001 · Note
• https://anas.openanolis.cn/cves/detail/CVE-2022-1678 · Note
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.228 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0a70f118475e037732557796accd0878a00fc25a · Note