The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.
Allocation of Resources Without Limits or Throttling The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
메트릭
메트릭
점수
심각도
CVSS 벡터
출처
V2
7.8
AV:N/AC:L/Au:N/C:N/I:N/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
–
–
1.32%
–
–
2022-02-27
–
–
1.32%
–
–
2022-04-03
–
–
1.32%
–
–
2022-05-15
–
–
1.32%
–
–
2022-09-18
–
–
1.32%
–
–
2023-03-12
–
–
–
31.15%
–
2023-11-12
–
–
–
31.15%
–
2024-02-18
–
–
–
3.62%
–
2024-04-14
–
–
–
3.62%
–
2024-06-02
–
–
–
3.62%
–
2024-06-02
–
–
–
3.62%
–
2024-12-15
–
–
–
3.9%
–
2024-12-22
–
–
–
2.46%
–
2025-01-19
–
–
–
2.46%
–
2025-03-18
–
–
–
–
9.95%
2025-04-15
–
–
–
–
9.95%
2025-05-28
–
–
–
–
30.69%
2025-07-01
–
–
–
–
30.69%
2025-07-04
–
–
–
–
30.69%
2025-07-09
–
–
–
–
30.69%
2025-07-16
–
–
–
–
30.69%
2025-07-17
–
–
–
–
30.69%
2025-10-08
–
–
–
–
30.69%
2025-10-27
–
–
–
–
30.69%
2025-10-28
–
–
–
–
30.69%
2025-11-01
–
–
–
–
30.69%
2025-11-04
–
–
–
–
30.69%
2025-11-07
–
–
–
–
30.69%
2025-11-10
–
–
–
–
30.69%
2025-11-11
–
–
–
–
30.69%
2025-11-18
–
–
–
–
30.69%
2025-11-21
–
–
–
–
30.69%
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.