The Portable Tool Library (aka PTLib) before 2.10.10, as used in Ekiga before 4.0.1, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted PXML document containing a large number of nested entity references, aka a "billion laughs attack."
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
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P
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
–
–
1.78%
–
–
2022-03-06
–
–
1.78%
–
–
2022-04-03
–
–
1.78%
–
–
2022-07-17
–
–
1.78%
–
–
2023-02-26
–
–
1.78%
–
–
2023-03-12
–
–
–
2.33%
–
2023-10-22
–
–
–
2.33%
–
2024-03-31
–
–
–
2.33%
–
2024-06-02
–
–
–
2.33%
–
2024-12-22
–
–
–
3.43%
–
2025-01-19
–
–
–
3.43%
–
2025-02-09
–
–
–
4.03%
–
2025-02-16
–
–
–
4.03%
–
2025-03-18
–
–
–
–
2.5%
2025-03-30
–
–
–
–
3.82%
2025-05-01
–
–
–
–
3.82%
2025-05-04
–
–
–
–
3.82%
2025-05-09
–
–
–
–
3.82%
2025-07-13
–
–
–
–
3.6%
2025-08-19
–
–
–
–
2.73%
2025-12-01
–
–
–
–
2.73%
2025-12-04
–
–
–
–
2.73%
2025-12-19
–
–
–
–
2.73%
2025-12-20
–
–
–
–
2.73%
2025-12-21
–
–
–
–
2.73%
2025-12-22
–
–
–
–
2.73%
2025-12-23
–
–
–
–
2.73%
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.