WeeChat up to 2.7 plugins/irc/irc-mode.c irc_mode_channel_update buffer overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.5 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in WeeChat up to 2.7 (Chat Software). Affected is the function irc_mode_channel_update
of the file plugins/irc/irc-mode.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode).
The weakness was published 02/12/2020. This vulnerability is traded as CVE-2020-8955 since 02/12/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Patch: github.com
Timeline
02/12/2020 🔍02/12/2020 🔍
02/13/2020 🔍
03/31/2024 🔍
Sources
Advisory: 6f4f147d8e86adf9ad34a8ffd7e7f1f23a7e74daStatus: Not defined
CVE: CVE-2020-8955 (🔍)
Entry
Created: 02/13/2020 18:54Updated: 03/31/2024 08:50
Changes: 02/13/2020 18:54 (35), 02/13/2020 18:59 (18), 03/31/2024 08:49 (19), 03/31/2024 08:50 (1)
Complete: 🔍
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