CVE-2021-28688
published 2021-04-06CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went…
PriorityP425medium6.5CVSS 3.1
AVLACLPRLUINSCCNINAH
EPSS
0.33%
25.8th percentile
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 5.10.28-1 (bookworm) | linux 5.10.28-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 3.11 < unspecified | unspecified |
| linux | linux_kernel | >= 0 < 5.10.28-1 | 5.10.28-1 |
| linux | linux_kernel | >= 0 < 5.10.28-1 | 5.10.28-1 |
| linux | linux_kernel | >= 0 < 5.10.28-1 | 5.10.28-1 |
| linux | linux_kernel | >= 0 < 5.10.28-1 | 5.10.28-1 |
| linux | linux_kernel | >= 0 < 4.15.0-143.147 | 4.15.0-143.147 |
| linux | linux_kernel | >= 0 < 5.4.0-74.83 | 5.4.0-74.83 |
| linux | linux_kernel | >= 0 < 4.4.0-222.255 | 4.4.0-222.255 |
| linux | linux_kernel | 3.11 – 5.10.18 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian6.5MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2022-03-22·CVSS 7.8
CVE-2020-25673 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly us
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-06-08·CVSS 6.5
CVE-2021-28972 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jan Beulich discovered that the Xen netback backend in the Linux kernel did
not properly handle certain error conditions under paravirtualization. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-28038)
It was discovered that the Realtek RTL8188EU Wireless device driver in the
Linux kernel did not properly validate ssid lengths in some situations. An
attacker could use this to cause a denial of service (system crash).
(CVE-2021-28660)
It was discovered that the Xen paravirtualization backend in the Linux
kernel did not properly deallocate memory in some situations. A local
attacker could use this to cause a denial of service (
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2021-05-11·CVSS 7.8
CVE-2021-3489 [HIGH] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ryota Shiga discovered that the eBPF implementation in the Linux kernel did
not properly verify that a BPF program only reserved as much memory for a
ring buffer as was allocated. A local attacker could use this to cause a
denial of service (system crash) or execute arbitrary code. (CVE-2021-3489)
Manfred Paul discovered that the eBPF implementation in the Linux kernel
did not properly track bounds on bitwise operations. A local attacker could
use this to cause a denial of service (system crash) or execute arbitrary
code. (CVE-2021-3490)
Billy Jheng Bing-Jhong discovered that the io_uring implementation of the
Linux kernel did not properly enforce the MAX_RW_COUNT limit in some
si
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-05-11·CVSS 6.7
CVE-2021-20292 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the DRM subsystem in the Linux kernel contained
double-free vulnerabilities. A privileged attacker could possibly use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-20292)
Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schönherr
discovered that the Xen paravirtualization backend in the Linux kernel did
not properly propagate errors to frontend drivers in some situations. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-26930)
Jan Beulich discovered that multiple Xen backends in the Linux kernel did
not properly handle certain error conditions
Debian
CVE-2021-28688: linux - The fix for XSA-365 includes initialization of pointers such that subsequent cle...
vendor_debian·2021·CVSS 6.5
CVE-2021-28688 [MEDIUM] CVE-2021-28688: linux - The fix for XSA-365 includes initialization of pointers such that subsequent cle...
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
Scope: local
bookworm: resolved (fixed in 5.10.28-1)
bullseye: resolved (fixed in 5.10.28-1)
forky: resolved (fixed in 5.10.28-1)
sid: resolved (fixed in 5.10.28-1)
trixie: resolved (fixed in 5.10.28-1)
GHSA
GHSA-hqhv-rx9w-cr56: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values
ghsa_unreviewed·2022-05-24
CVE-2021-28688 [MEDIUM] CWE-665 GHSA-hqhv-rx9w-cr56: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2022-03-22·CVSS 7.8
CVE-2022-0492 [HIGH] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly use this to gain
elevated privileges. (CVE
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities
osv·2021-06-08·CVSS 6.5
CVE-2021-28038 [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
Jan Beulich discovered that the Xen netback backend in the Linux kernel did
not properly handle certain error conditions under paravirtualization. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-28038)
It was discovered that the Realtek RTL8188EU Wireless device driver in the
Linux kernel did not properly validate ssid lengths in some situations. An
attacker could use this to cause a denial of service (system crash).
(CVE-2021-28660)
It was discovered that the Xen paravirtualization backend in the Linux
kernel did not properly deallocate memory in some situations. A local
attacker could use this to cause a denial of s
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.
osv·2021-06-08·CVSS 7.8
CVE-2020-25670 [HIGH] linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
Linux kernel contained a reference counting error. A local attacker could
use this to cause a denial of service (system crash). (CVE-2020-25670)
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
Linux kernel did not properly deallocate memory in certain error
situations. A local attacker could use this to cause a denial of service
(memory exhaustion). (CVE-2020-25671, CVE-2020-25672)
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
OSV
linux-oem-5.10 vulnerabilities
osv·2021-05-11·CVSS 7.8
CVE-2021-3489 [HIGH] linux-oem-5.10 vulnerabilities
linux-oem-5.10 vulnerabilities
Ryota Shiga discovered that the eBPF implementation in the Linux kernel did
not properly verify that a BPF program only reserved as much memory for a
ring buffer as was allocated. A local attacker could use this to cause a
denial of service (system crash) or execute arbitrary code. (CVE-2021-3489)
Manfred Paul discovered that the eBPF implementation in the Linux kernel
did not properly track bounds on bitwise operations. A local attacker could
use this to cause a denial of service (system crash) or execute arbitrary
code. (CVE-2021-3490)
Billy Jheng Bing-Jhong discovered that the io_uring implementation of the
Linux kernel did not properly enforce the MAX_RW_COUNT limit in some
situations. A local attacker could use this to cause a denial of service
(syste
OSV
linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2021-05-11·CVSS 6.7
CVE-2021-20292 [MEDIUM] linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the DRM subsystem in the Linux kernel contained
double-free vulnerabilities. A privileged attacker could possibly use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-20292)
Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schönherr
discovered that the Xen paravirtualization backend in the Linux kernel did
not properly propagate errors to frontend drivers in some situations. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-26930)
Jan Beulich discovered that multi
OSV
CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values
osv·2021-04-06·CVSS 6.5
CVE-2021-28688 [MEDIUM] CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlhttps://xenbits.xenproject.org/xsa/advisory-371.txthttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlhttps://xenbits.xenproject.org/xsa/advisory-371.txt
2021-04-06
Published