VulnerabilityModified
CVE-2017-16995
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
HIGH 7.8EPSS 30.1%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 30.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 30.05% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel · debian/debian linux · canonical/ubuntu linux
- Source
- security@debian.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6fVendor Advisory
- http://openwall.com/lists/oss-security/2017/12/21/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102288Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adbVendor Advisory
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6fThird Party Advisory
- https://usn.ubuntu.com/3619-1/Third Party Advisory
- https://usn.ubuntu.com/3619-2/Third Party Advisory
- https://usn.ubuntu.com/3633-1/Third Party Advisory
- https://usn.ubuntu.com/usn/usn-3523-2/Third Party Advisory
- https://www.debian.org/security/2017/dsa-4073Third Party Advisory
- https://www.exploit-db.com/exploits/44298/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45010/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45058/Third Party Advisory, VDB Entry
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6fVendor Advisory
- http://openwall.com/lists/oss-security/2017/12/21/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102288Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adbVendor Advisory
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6fThird Party Advisory
- https://usn.ubuntu.com/3619-1/Third Party Advisory
- https://usn.ubuntu.com/3619-2/Third Party Advisory
- https://usn.ubuntu.com/3633-1/Third Party Advisory
- https://usn.ubuntu.com/usn/usn-3523-2/Third Party Advisory
- https://www.debian.org/security/2017/dsa-4073Third Party Advisory
- https://www.exploit-db.com/exploits/44298/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45010/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45058/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.