The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
메트릭
메트릭
점수
심각도
CVSS 벡터
출처
V2
6.9
AV:L/AC:M/Au:N/C:C/I:C/A:C
nvd@nist.gov
EPSS
EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.
EPSS 점수
EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.
날짜
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
3.22%
–
–
2022-02-13
–
–
3.22%
–
–
2022-04-03
–
–
3.22%
–
–
2022-09-18
–
–
3.22%
–
–
2023-03-12
–
–
–
0.04%
–
2023-03-19
–
–
–
0.04%
–
2024-02-18
–
–
–
0.04%
–
2024-06-02
–
–
–
0.04%
–
2025-01-19
–
–
–
0.04%
–
2025-03-18
–
–
–
–
4.69%
2025-03-30
–
–
–
–
3.93%
2025-04-15
–
–
–
–
3.93%
2025-04-30
–
–
–
–
4.03%
2025-05-13
–
–
–
–
3.93%
2025-06-03
–
–
–
–
4.54%
2025-06-04
–
–
–
–
3.34%
2025-09-18
–
–
–
–
2.92%
2025-10-18
–
–
–
–
2.53%
2025-11-16
–
–
–
–
2.14%
2025-11-18
–
–
–
–
2.14%
2025-11-21
–
–
–
–
2.14%
2026-01-20
–
–
–
–
2.39%
2026-02-22
–
–
–
–
1.71%
2026-05-17
–
–
–
–
1.71%
2026-05-31
–
–
–
–
2.03%
EPSS 백분위수
백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.