Mô tả CVE

Off-by-one error in the decode_xs function in Unicode/Unicode.xs in the Encode module before 2.44, as used in Perl before 5.15.6, might allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Unicode string, which triggers a heap-based buffer overflow.

Thông tin CVE

Điểm yếu liên quan

CWE-ID	Tên điểm yếu	Nguồn
CWE-189	Category : Numeric Errors Weaknesses in this category are related to improper calculation or conversion of numbers.

Số liệu

Số liệu	Điểm	Mức độ nghiêm trọng	CVSS Vector	Nguồn
V2	5.1		AV:N/AC:H/Au:N/C:P/I:P/A:P	nvd@nist.gov

EPSS

EPSS là mô hình tính điểm dự đoán khả năng một lỗ hổng bị khai thác.

Điểm EPSS

Mô hình EPSS tạo ra điểm xác suất từ 0 đến 1 (0 đến 100%). Điểm càng cao, xác suất một lỗ hổng bị khai thác càng lớn.

Phân vị EPSS

Phân vị được dùng để xếp hạng CVE theo điểm EPSS. Ví dụ, một CVE ở phân vị thứ 95 theo điểm EPSS có nhiều khả năng bị khai thác hơn 95% CVE khác. Do đó, phân vị được dùng để so sánh điểm EPSS của một CVE với các CVE khác.

EPSS First.org

Sản phẩm được đề cập

Cấu hình 0

Dan_kogai>>Encode_module >> Version Đến (bao gồm) 2.43

Dan_kogai>>Encode_module >> Version 0.93

Dan_kogai>>Encode_module >> Version 0.94

Dan_kogai>>Encode_module >> Version 0.95

Dan_kogai>>Encode_module >> Version 0.96

Dan_kogai>>Encode_module >> Version 0.97

Dan_kogai>>Encode_module >> Version 0.98

Dan_kogai>>Encode_module >> Version 0.99

Dan_kogai>>Encode_module >> Version 1.00

Dan_kogai>>Encode_module >> Version 1.01

Dan_kogai>>Encode_module >> Version 1.10

Dan_kogai>>Encode_module >> Version 1.11

Dan_kogai>>Encode_module >> Version 1.20

Dan_kogai>>Encode_module >> Version 1.21

Dan_kogai>>Encode_module >> Version 1.25

Dan_kogai>>Encode_module >> Version 1.26

Dan_kogai>>Encode_module >> Version 1.28

Dan_kogai>>Encode_module >> Version 1.30

Dan_kogai>>Encode_module >> Version 1.31

Dan_kogai>>Encode_module >> Version 1.32

Dan_kogai>>Encode_module >> Version 1.33

Dan_kogai>>Encode_module >> Version 1.34

Dan_kogai>>Encode_module >> Version 1.40

Dan_kogai>>Encode_module >> Version 1.41

Dan_kogai>>Encode_module >> Version 1.42

Dan_kogai>>Encode_module >> Version 1.50

Dan_kogai>>Encode_module >> Version 1.51

Dan_kogai>>Encode_module >> Version 1.52

Dan_kogai>>Encode_module >> Version 1.53

Dan_kogai>>Encode_module >> Version 1.54

Dan_kogai>>Encode_module >> Version 1.55

Dan_kogai>>Encode_module >> Version 1.56

Dan_kogai>>Encode_module >> Version 1.57

Dan_kogai>>Encode_module >> Version 1.58

Dan_kogai>>Encode_module >> Version 1.59

Dan_kogai>>Encode_module >> Version 1.60

Dan_kogai>>Encode_module >> Version 1.61

Dan_kogai>>Encode_module >> Version 1.62

Dan_kogai>>Encode_module >> Version 1.63

Dan_kogai>>Encode_module >> Version 1.64

Dan_kogai>>Encode_module >> Version 1.65

Dan_kogai>>Encode_module >> Version 1.66

Dan_kogai>>Encode_module >> Version 1.67

Dan_kogai>>Encode_module >> Version 1.68

Dan_kogai>>Encode_module >> Version 1.69

Dan_kogai>>Encode_module >> Version 1.70

Dan_kogai>>Encode_module >> Version 1.71

Dan_kogai>>Encode_module >> Version 1.72

Dan_kogai>>Encode_module >> Version 1.73

Dan_kogai>>Encode_module >> Version 1.74

Dan_kogai>>Encode_module >> Version 1.75

Dan_kogai>>Encode_module >> Version 1.76

Dan_kogai>>Encode_module >> Version 1.77

Dan_kogai>>Encode_module >> Version 1.78

Dan_kogai>>Encode_module >> Version 1.79

Dan_kogai>>Encode_module >> Version 1.80

Dan_kogai>>Encode_module >> Version 1.81

Dan_kogai>>Encode_module >> Version 1.82

Dan_kogai>>Encode_module >> Version 1.83

Dan_kogai>>Encode_module >> Version 1.84

Dan_kogai>>Encode_module >> Version 1.85

Dan_kogai>>Encode_module >> Version 1.86

Dan_kogai>>Encode_module >> Version 1.87

Dan_kogai>>Encode_module >> Version 1.88

Dan_kogai>>Encode_module >> Version 1.89

Dan_kogai>>Encode_module >> Version 1.90

Dan_kogai>>Encode_module >> Version 1.91

Dan_kogai>>Encode_module >> Version 1.92

Dan_kogai>>Encode_module >> Version 1.93

Dan_kogai>>Encode_module >> Version 1.94

Dan_kogai>>Encode_module >> Version 1.95

Dan_kogai>>Encode_module >> Version 1.96

Dan_kogai>>Encode_module >> Version 1.97

Dan_kogai>>Encode_module >> Version 1.98

Dan_kogai>>Encode_module >> Version 1.99

Dan_kogai>>Encode_module >> Version 2.0

Dan_kogai>>Encode_module >> Version 2.01

Dan_kogai>>Encode_module >> Version 2.02

Dan_kogai>>Encode_module >> Version 2.03

Dan_kogai>>Encode_module >> Version 2.04

Dan_kogai>>Encode_module >> Version 2.05

Dan_kogai>>Encode_module >> Version 2.06

Dan_kogai>>Encode_module >> Version 2.07

Dan_kogai>>Encode_module >> Version 2.08

Dan_kogai>>Encode_module >> Version 2.09

Dan_kogai>>Encode_module >> Version 2.10

Dan_kogai>>Encode_module >> Version 2.11

Dan_kogai>>Encode_module >> Version 2.12

Dan_kogai>>Encode_module >> Version 2.13

Dan_kogai>>Encode_module >> Version 2.14

Dan_kogai>>Encode_module >> Version 2.15

Dan_kogai>>Encode_module >> Version 2.16

Dan_kogai>>Encode_module >> Version 2.17

Dan_kogai>>Encode_module >> Version 2.18

Dan_kogai>>Encode_module >> Version 2.19

Dan_kogai>>Encode_module >> Version 2.20

Dan_kogai>>Encode_module >> Version 2.21

Dan_kogai>>Encode_module >> Version 2.22

Dan_kogai>>Encode_module >> Version 2.23

Dan_kogai>>Encode_module >> Version 2.24

Dan_kogai>>Encode_module >> Version 2.25

Dan_kogai>>Encode_module >> Version 2.26

Dan_kogai>>Encode_module >> Version 2.27

Dan_kogai>>Encode_module >> Version 2.28

Dan_kogai>>Encode_module >> Version 2.29

Dan_kogai>>Encode_module >> Version 2.30

Dan_kogai>>Encode_module >> Version 2.31

Dan_kogai>>Encode_module >> Version 2.32

Dan_kogai>>Encode_module >> Version 2.33

Dan_kogai>>Encode_module >> Version 2.34

Dan_kogai>>Encode_module >> Version 2.35

Dan_kogai>>Encode_module >> Version 2.36

Dan_kogai>>Encode_module >> Version 2.37

Dan_kogai>>Encode_module >> Version 2.38

Dan_kogai>>Encode_module >> Version 2.39

Dan_kogai>>Encode_module >> Version 2.40

Dan_kogai>>Encode_module >> Version 2.41

Dan_kogai>>Encode_module >> Version 2.42

Perl>>Perl >> Version Đến (bao gồm) 5.14.2

Perl>>Perl >> Version 5.8.1

Perl>>Perl >> Version 5.8.2

Perl>>Perl >> Version 5.8.3

Perl>>Perl >> Version 5.8.4

Perl>>Perl >> Version 5.8.5

Perl>>Perl >> Version 5.8.6

Perl>>Perl >> Version 5.8.7

Perl>>Perl >> Version 5.8.8

Perl>>Perl >> Version 5.8.9

Perl>>Perl >> Version 5.8.10

Perl>>Perl >> Version 5.9.2

Perl>>Perl >> Version 5.10

Perl>>Perl >> Version 5.10.0

Perl>>Perl >> Version 5.10.1

Perl>>Perl >> Version 5.11.0

Perl>>Perl >> Version 5.11.1

Perl>>Perl >> Version 5.11.2

Perl>>Perl >> Version 5.11.3

Perl>>Perl >> Version 5.11.4

Perl>>Perl >> Version 5.11.5

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.1

Perl>>Perl >> Version 5.12.2

Perl>>Perl >> Version 5.12.3

Perl>>Perl >> Version 5.13.0

Perl>>Perl >> Version 5.13.1

Perl>>Perl >> Version 5.13.2

Perl>>Perl >> Version 5.13.3

Perl>>Perl >> Version 5.13.4

Perl>>Perl >> Version 5.13.5

Perl>>Perl >> Version 5.13.6

Perl>>Perl >> Version 5.13.7

Perl>>Perl >> Version 5.13.8

Perl>>Perl >> Version 5.13.9

Perl>>Perl >> Version 5.13.10

Perl>>Perl >> Version 5.13.11

Perl>>Perl >> Version 5.14.0

Perl>>Perl >> Version 5.14.1

Tài liệu tham khảo

http://secunia.com/advisories/46989
Tags : third-party-advisory, x_refsource_SECUNIA

http://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
Tags : x_refsource_CONFIRM

http://secunia.com/advisories/55314
Tags : third-party-advisory, x_refsource_SECUNIA

http://www.ubuntu.com/usn/USN-1643-1
Tags : vendor-advisory, x_refsource_UBUNTU

http://www.securityfocus.com/bid/49858
Tags : vdb-entry, x_refsource_BID

http://www.openwall.com/lists/oss-security/2011/08/18/8
Tags : mailing-list, x_refsource_MLIST

http://perl5.git.perl.org/perl.git/commitdiff/e46d973584785af1f445c4dedbee4243419cb860#patch5
Tags : x_refsource_CONFIRM

http://secunia.com/advisories/46172
Tags : third-party-advisory, x_refsource_SECUNIA

https://bugzilla.redhat.com/show_bug.cgi?id=731246
Tags : x_refsource_CONFIRM

http://search.cpan.org/~flora/perl-5.14.2/pod/perldelta.pod#Encode_decode_xs_n-byte_heap-overflow_%28CVE-2011-2939%29
Tags : x_refsource_CONFIRM

http://www.mandriva.com/security/advisories?name=MDVSA-2012:008
Tags : vendor-advisory, x_refsource_MANDRIVA

http://www.redhat.com/support/errata/RHSA-2011-1424.html
Tags : vendor-advisory, x_refsource_REDHAT

http://www.openwall.com/lists/oss-security/2011/08/19/17
Tags : mailing-list, x_refsource_MLIST

http://secunia.com/advisories/51457
Tags : third-party-advisory, x_refsource_SECUNIA

Ngày	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	2.69%	–	–
2022-04-03	–	–	2.69%	–	–
2022-06-12	–	–	2.69%	–	–
2023-02-26	–	–	2.69%	–	–
2023-03-12	–	–	–	2.14%	–
2023-03-26	–	–	–	2.14%	–
2023-06-11	–	–	–	2.05%	–
2023-08-06	–	–	–	2.05%	–
2024-02-04	–	–	–	1.72%	–
2024-03-10	–	–	–	1.72%	–
2024-06-02	–	–	–	1.72%	–
2024-09-08	–	–	–	1.9%	–
2024-12-22	–	–	–	2.67%	–
2025-01-19	–	–	–	2.67%	–
2025-03-18	–	–	–	–	5.47%
2025-03-30	–	–	–	–	5.15%
2025-05-04	–	–	–	–	3.69%
2025-07-30	–	–	–	–	2.32%
2025-10-01	–	–	–	–	6.57%
2025-10-27	–	–	–	–	2.32%
2025-10-28	–	–	–	–	6.57%
2025-11-18	–	–	–	–	6.57%
2025-11-21	–	–	–	–	6.57%
2025-12-27	–	–	–	–	2.32%
2025-12-28	–	–	–	–	6.57%

Ngày	Phân vị
2022-02-06	63%
2022-04-03	81%
2022-06-12	82%
2023-02-26	83%
2023-03-12	87%
2023-03-26	88%
2023-06-11	87%
2023-08-06	88%
2024-02-04	87%
2024-03-10	88%
2024-06-02	88%
2024-09-08	89%
2024-12-22	9%
2025-01-19	9%
2025-03-18	9%
2025-03-30	89%
2025-05-04	87%
2025-07-30	84%
2025-10-01	91%
2025-10-27	84%
2025-10-28	91%
2025-11-18	9%
2025-11-21	91%
2025-12-27	84%
2025-12-28	91%

CVE-2011-2939 : Chi tiết

CVE-2011-2939