CVE-2020-35508
published 2021-03-26CVE-2020-35508: A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling…
PriorityP421medium4.5CVSS 3.1
AVLACHPRLUINSUCLILAL
EPSS
0.22%
13.2th percentile
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.9.9-1 (bookworm) | linux 5.9.9-1 (bookworm) |
| linux | linux_kernel | < 5.12 | 5.12 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.9.9-1 | 5.9.9-1 |
| linux | linux_kernel | >= 0 < 5.9.9-1 | 5.9.9-1 |
| linux | linux_kernel | >= 0 < 5.9.9-1 | 5.9.9-1 |
| linux | linux_kernel | >= 0 < 5.9.9-1 | 5.9.9-1 |
| msrc | cbl2_kernel_5.10.78.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_kernel_5.10.60.1-1_on_cbl_mariner_1.0 | — | — |
| paloalto | pan-os | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.14.5MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
nvdv2.04.4MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P
osv5.4MEDIUM
vendor_ubuntu5.4MEDIUM
vendor_debian4.5MEDIUM
vendor_msrc4.5MEDIUM
vendor_redhat4.5MEDIUM
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Palo Alto
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS
vendor_paloalto·2024-02-14·CVSS 9.8
CVE-2017-18342 [CRITICAL] PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS
The Palo Alto Networks Product Security Assurance team has evaluated the following open source software (OSS) CVEs as they relate to PAN-OS software. While PAN-OS software may include the
CVEs: CVE-2017-18342, CVE-2017-8923, CVE-2017-9120, CVE-2019-1551, CVE-2019-16865, CVE-2019-16905, CVE-2019-19523, CVE-2019-19528, CVE-2019-19911, CVE-2020-0404, CVE-2020-0431, CVE-2020-0466, CVE-2020-10379, CVE-2020-11538, CVE-2020-11608, CVE-2020-12114, CVE-2020-12321, CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-13757, CVE-2020-14314, CVE-2020-14351, CVE-2020-15778, CVE-2020-1967, CVE-2020-24394, CVE-2020-24504, CVE-2020-25211, CVE-2020-25212, CVE-2020-25284, CVE-2020-25285, CVE-2020-25717, CVE-2020-26541, CVE-2020-2715
Microsoft
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local
vendor_msrc·2021-03-09·CVSS 4.5
CVE-2020-35508 [MEDIUM] CWE-665 A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this bl
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-02-25·CVSS 4.1
CVE-2020-25704 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the console keyboard driver in the Linux kernel
contained a race condition. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-25656)
Minh Yuan discovered that the tty driver in the Linux kernel contained race
conditions when handling fonts. A local attacker could possibly use this to
expose sensitive information (kernel memory). (CVE-2020-25668)
Bodong Zhao discovered a use-after-free in the Sun keyboard driver
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service or possibly execute arbitrary code.
(CVE-2020-25669)
Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2021-02-25·CVSS 5.4
CVE-2020-27152 [MEDIUM] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impersonate a previously
paired Bluetooth device. (CVE-2020-10135)
Jay Shin discovered that the ext4 file system implementation in the Linux
kernel did not properly handle directory access with broken indexing,
leading to an out-of-bounds read vulnerability. A local attacker could use
this to cause a denial of service (system crash). (CVE-2020-14314)
It was di
Red Hat
kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
vendor_redhat·2020-12-09·CVSS 4.5
CVE-2020-35508 [MEDIUM] CWE-665 kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Statement: The incorrect initialization of the process id affects Red Hat Enterprise Linux only.
Mitigation: Mitigation f
Debian
CVE-2020-35508: linux - A flaw possibility of race condition and incorrect initialization of the process...
vendor_debian·2020·CVSS 4.5
CVE-2020-35508 [MEDIUM] CVE-2020-35508: linux - A flaw possibility of race condition and incorrect initialization of the process...
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Scope: local
bookworm: resolved (fixed in 5.9.9-1)
bullseye: resolved (fixed in 5.9.9-1)
forky: resolved (fixed in 5.9.9-1)
sid: resolved (fixed in 5.9.9-1)
trixie: resolved (fixed in 5.9.9-1)
GHSA
GHSA-467m-6jmp-65g9: A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification
ghsa_unreviewed·2022-05-24
CVE-2020-35508 [HIGH] CWE-362 GHSA-467m-6jmp-65g9: A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
OSV
CVE-2020-35508: A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification
osv·2021-03-26·CVSS 4.5
CVE-2020-35508 [MEDIUM] CVE-2020-35508: A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities
osv·2021-02-25·CVSS 4.1
CVE-2020-25656 [MEDIUM] linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities
It was discovered that the console keyboard driver in the Linux kernel
contained a race condition. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-25656)
Minh Yuan discovered that the tty driver in the Linux kernel contained race
conditions when handling fonts. A local attacker could possibly use this to
expose sensitive information (kernel memory). (CVE-2020-25668)
Bodong Zhao discovered a use-after-free in the Sun keyboard driver
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service or possibly execute arbitrary code.
(CVE-2020-25669)
Kiyin (尹亮) discovered that the perf subsystem in the Linu
OSV
linux-oem-5.6 vulnerabilities
osv·2021-02-25·CVSS 5.4
CVE-2020-10135 [MEDIUM] linux-oem-5.6 vulnerabilities
linux-oem-5.6 vulnerabilities
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impersonate a previously
paired Bluetooth device. (CVE-2020-10135)
Jay Shin discovered that the ext4 file system implementation in the Linux
kernel did not properly handle directory access with broken indexing,
leading to an out-of-bounds read vulnerability. A local attacker could use
this to cause a denial of service (system crash). (CVE-2020-14314)
It was discovered that the block layer implementation in the Linux kernel
did not prope
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1902724https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948https://security.netapp.com/advisory/ntap-20210513-0006/https://bugzilla.redhat.com/show_bug.cgi?id=1902724https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948https://security.netapp.com/advisory/ntap-20210513-0006/
2021-03-26
Published