CVE-2017-18075
published 2018-01-24CVE-2017-18075: crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface…
PriorityP432high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.41%
33.6th percentile
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | linux | < linux 4.14.13-1 (bookworm) | linux 4.14.13-1 (bookworm) |
| linux | linux_kernel | >= 0 < 4.14.13-1 | 4.14.13-1 |
| linux | linux_kernel | >= 0 < 4.14.13-1 | 4.14.13-1 |
| linux | linux_kernel | >= 0 < 4.14.13-1 | 4.14.13-1 |
| linux | linux_kernel | >= 0 < 4.14.13-1 | 4.14.13-1 |
| linux | linux_kernel | >= 0 < 4.4.0-119.143 | 4.4.0-119.143 |
| linux | linux_kernel | >= 4.10 < 4.14.13 | 4.14.13 |
| linux | linux_kernel | >= 4.2 < 4.4.111 | 4.4.111 |
| linux | linux_kernel | >= 4.5 < 4.9.76 | 4.9.76 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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Ubuntu
Linux kernel (Xenial HWE) vulnerabilities
vendor_ubuntu·2018-04-05·CVSS 7.8
CVE-2017-0861 [HIGH] Linux kernel (Xenial HWE) vulnerabilities
Title: Linux kernel (Xenial HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3619-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation
in the Linux kernel improperly performed sign extension in some situations.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-16995)
It was discovered that a race condition leading to a use-after-free
vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A
local attacker could use this to cause a denial of
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2018-04-04·CVSS 7.8
CVE-2017-0861 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation
in the Linux kernel improperly performed sign extension in some situations.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-16995)
It was discovered that a race condition leading to a use-after-free
vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-0861)
It was discovered that the KVM implementation in the Linux kernel allowed
passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM
could
Red Hat
kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
vendor_redhat·2017-12-20·CVSS 7.8
CVE-2017-18075 [HIGH] CWE-628 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
crypto/pcrypt.c in the Linux kernel, before 4.14.13, mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by execut
Debian
CVE-2017-18075: linux - crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances,...
vendor_debian·2017·CVSS 7.8
CVE-2017-18075 [HIGH] CVE-2017-18075: linux - crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances,...
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
Scope: local
bookworm: resolved (fixed in 4.14.13-1)
bullseye: resolved (fixed in 4.14.13-1)
forky: resolved (fixed in 4.14.13-1)
sid: resolved (fixed in 4.14.13-1)
trixie: resolved (fixed in 4.14.13-1)
GHSA
GHSA-jgvv-ggg2-4ww6: crypto/pcrypt
ghsa_unreviewed·2022-05-13
CVE-2017-18075 [HIGH] CWE-763 GHSA-jgvv-ggg2-4ww6: crypto/pcrypt
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
OSV
linux-lts-xenial, linux-aws vulnerabilities
osv·2018-04-05·CVSS 7.8
[HIGH] linux-lts-xenial, linux-aws vulnerabilities
linux-lts-xenial, linux-aws vulnerabilities
USN-3619-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation
in the Linux kernel improperly performed sign extension in some situations.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-16995)
It was discovered that a race condition leading to a use-after-free
vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-08
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
osv·2018-04-04·CVSS 7.8
CVE-2017-16995 [HIGH] linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation
in the Linux kernel improperly performed sign extension in some situations.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-16995)
It was discovered that a race condition leading to a use-after-free
vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-0861)
It was discovered that the KVM implementation in the Linux kernel allowed
passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM
could use this to cause a denial
OSV
CVE-2017-18075: crypto/pcrypt
osv·2018-01-24·CVSS 7.8
CVE-2017-18075 [HIGH] CVE-2017-18075: crypto/pcrypt
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service [fedora-all]
bugzilla·2018-02-17·CVSS 7.8
CVE-2017-18075 [HIGH] CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service [fedora-all]
CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Bugzilla
CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
bugzilla·2018-01-29·CVSS 7.8
CVE-2017-18075 [HIGH] CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
CVE-2017-18075 kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
References:
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
An upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1c
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68http://www.securityfocus.com/bid/102813https://access.redhat.com/errata/RHSA-2018:2948https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68https://usn.ubuntu.com/3619-1/https://usn.ubuntu.com/3619-2/https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68http://www.securityfocus.com/bid/102813https://access.redhat.com/errata/RHSA-2018:2948https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68https://usn.ubuntu.com/3619-1/https://usn.ubuntu.com/3619-2/https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
2018-01-24
Published