ID CVE-2019-19448
Summary In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
References
Vulnerable Configurations
  • cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:*
CVSS
Base: 6.8 (as of 02-11-2020 - 21:15)
Impact:
Exploitability:
CWE CWE-416
CAPEC
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:M/Au:N/C:P/I:P/A:P
refmap via4
confirm https://security.netapp.com/advisory/ntap-20200103-0001/
misc https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448
mlist
  • [debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update
  • [debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update
  • [debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update
ubuntu USN-4578-1
Last major update 02-11-2020 - 21:15
Published 08-12-2019 - 02:15
Last modified 02-11-2020 - 21:15
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