CVE-2017-7805
HIGH7.5EPSS 3.2%nss - security update
發布日:2018/6/11修改日:2026/4/28
也稱為:DEBIAN-CVE-2017-7805
描述
During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
受影響套件(5)
- Debian/firefox-esrfrom 0, < 52.4.0esr-2
- Debian/nssfrom 0, < 2:3.33-1
- Debian/nssfrom 0, < 2:3.26-1+debu7u5
- Debian/nssfrom 0, < 2:3.26-1+debu8u3
- Debian/thunderbirdfrom 0, < 1:52.4.0-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |