CVE-2019-15917: debian debian_linux Use After Free

Modified

AliasesUBUNTU-CVE-2019-15917DEBIAN-CVE-2019-15917

Published 04-09-2019Last modified 05-08-2024

Vulnerability summary

CVE-2019-15917 is a high (CVSS 7.0) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.8% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (NVD)

EPSS score

0.64%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

04-09-2019
PublishedVulnerability first disclosed.
05-08-2024
Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 5.0.5. There is a use-after-free issue when hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c.

CVSS metrics

5 scores · 3 sources · 3 versions

v4.07.3v3.17.0v2.06.9

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.64% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu21 products

linux< 4.15.0-60.67
linux-aws< 4.15.0-1047.49
linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
linux-aws-hwe< 4.15.0-1047.49~16.04.1
linux-azure< 4.15.0-1059.64~14.04.1 | < 4.15.0-1056.61 | < 5.0.0-1014.14~18.04.1

Show all 21

Debian2 products

linux< 4.19.37-1
debian_linuxEOL8.0

Linux1 product

linux_kernel≥ 3.12.61, < 3.13 | ≥ 4.7, < 4.9.202 | ≥ 4.10, < 4.14.109 | ≥ 4.15, < 4.19.32 | ≥ 4.20, < 5.0.5

Opensuse1 product

leapEOL15.0 | 15.1

4 vendors · 25 products

References

13 links

github.com/torvalds/linux/commit/56897b217a1d0a91c9920cb418d6b3fe922f590aX Refsource MISCPatchREPORT
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.5X Refsource MISCRelease NotesREPORT
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/2019/09/msg00025.htmlMailing ListX Refsource MLISTThird Party Advisory
security.netapp.com/advisory/ntap-20191004-0001/X Refsource CONFIRMThird Party Advisory
seclists.org/bugtraq/2020/Jan/10Mailing ListX Refsource BUGTRAQThird Party Advisory
packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory
ubuntu.com/security/CVE-2019-15917REPORT

Show all 13 references