CVE-2017-7308: linux linux_kernel
Vulnerability summary
CVE-2017-7308 is a high (CVSS 7.8) vulnerability in linux linux_kernel. EPSS estimates a 17.83% chance of exploitation in the next 30 days, higher than 97.1% of scored vulnerabilities. 4 public exploits are recorded.
Weaponized exploit (exploit-database, 18-05-2018)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 33 · Related 25Timeline
- 29-03-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
17.83%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
No change 0.00 pp
From 17.83% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
4 foundLinux 4.8.0 < 4.8.0-46 - AF_PACKET packet_set_ring Privilege Escalation (Metasploit)
Maturity: weaponized
Linux Kernel 4.8.0-34 < 4.8.0-45 (Ubuntu / Linux Mint) - Packet Socket Local Privilege Escalation
Maturity: poc
Linux Kernel 4.8.0-41-generic (Ubuntu) - Packet Socket Local Privilege Escalation
Maturity: weaponized
Weaknesses
CWE · root cause- CWE-681Incorrect Conversion between Numeric TypesWhen converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse14 products
- kgraft-patch-SLE12_Update_13&distro=SUSE Linux Enterprise Server 12-LTSS< 9-2.1
- kgraft-patch-SLE12_Update_13&distro=SUSE Linux Enterprise Server for SAP Applications 12< 9-2.1
- kgraft-patch-SLE12_Update_14&distro=SUSE Linux Enterprise Server 12-LTSS< 9-2.1
- kgraft-patch-SLE12_Update_14&distro=SUSE Linux Enterprise Server for SAP Applications 12< 9-2.1
- kgraft-patch-SLE12_Update_15&distro=SUSE Linux Enterprise Server 12-LTSS< 9-2.1
Ubuntu7 products
- linux< 3.13.0-116.163 | < 4.4.0-72.93
- linux-aws< 4.4.0-1013.22
- linux-gke< 4.4.0-1010.10
- linux-hwe< 4.8.0-46.49~16.04.1
- linux-lts-xenial< 4.4.0-72.93~14.04.1
Debian1 product
- linux< 4.9.18-1
Linux1 product
- linux_kernel≥ 2.6.27, < 3.2.89 | ≥ 3.3, < 3.10.107 | ≥ 3.11, < 3.12.74 | ≥ 3.13, < 3.16.44 | ≥ 3.17, < 3.18.52 | ≥ 3.19, < 4.1.41 | ≥ 4.2, < 4.4.66 | ≥ 4.5, < 4.9.26 | ≥ 4.10, < 4.10.14
4 vendors · 23 products
References
28 links- googleprojectzero.blogspot.com/2017/05/exploiting-linux-kernel-via-packet.htmlX Refsource MISCThird Party Advisory
