CVE-2017-7482: debian debian_linux Integer Overflow or Wraparound
Vulnerability summary
CVE-2017-7482 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 40.6% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 12Timeline
- 30-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.
CVSS metrics
7 scores · 4 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
- NVDNIST7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.47% on 04-10-2026
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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu12 products
- linux< 3.13.0-126.175 | < 4.4.0-89.112
- linux-aws< 4.4.0-1028.37
- linux-azure-fdeAll versions (No fix recorded)
- linux-gke< 4.4.0-1024.24 | All versions (No fix recorded)
- linux-hwe< 4.10.0-32.36~16.04.1
Debian2 products
- linux< 4.11.11-1
- debian_linuxEOL8.0 | 9.0
[unknown]1 product
- kernel:4.12
Linux1 product
- linux_kernel< 3.2.90 | ≥ 3.3, < 3.10.108 | ≥ 3.11, < 3.16.45 | ≥ 3.17, < 3.18.59 | ≥ 3.19, < 4.1.43 | ≥ 4.2, < 4.4.75 | ≥ 4.5, < 4.9.35 | ≥ 4.10, < 4.11.8
Redhat1 product
5 vendors · 17 products
References
18 links
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482X Refsource CONFIRMIssue TrackingPatchThird Party Advisory