CVE-2019-15902: debian debian_linux
Vulnerability summary
CVE-2019-15902 is a medium (CVSS 5.6) vulnerability in debian debian_linux. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 49.2% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.6, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 23 · Related 21Timeline
- 04-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.6MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.6MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS trend
Probability
0.61%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.61% 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
1 foundExploit Reference (grsecurity.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu22 products
- linux< 4.4.0-166.195 | < 4.15.0-66.75
- linux-aws< 4.4.0-1056.60 | < 4.4.0-1096.107 | < 4.15.0-1052.54
- linux-aws-hwe< 4.15.0-1052.54~16.04.1
- linux-azure< 4.15.0-1061.66~14.04.1 | < 4.15.0-1061.66 | < 5.0.0-1023.24~18.04.1
- linux-azure-fdeAll versions (No fix recorded)
Netapp3 products
Debian2 products
- linux< 5.2.17-1
- debian_linuxEOL8.0 | 9.0 | 10.0
Linux1 product
- linux_kernel≥ 4.4, ≤ 4.4.190 | ≥ 4.9, ≤ 4.9.190 | ≥ 4.14, ≤ 4.14.141 | ≥ 4.19, ≤ 4.19.69 | ≥ 5.2, ≤ 5.2.11
Opensuse1 product
- leapEOL15.0 | 15.1
5 vendors · 29 products
References
22 links- grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.phpX Refsource MISCExploitPatchThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/10/msg00000.htmlMailing ListX Refsource MLISTThird Party Advisory