DEBIAN-CVE-2017-7805
Record from OSV · Published June 11, 2018
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| thunderbird | Debian:13 | 1:52.4.0-1 |
| nss | Debian:13 | 2:3.33-1 |
| thunderbird | Debian:14 | 1:52.4.0-1 |
| thunderbird | Debian:12 | 1:52.4.0-1 |
| firefox-esr | Debian:14 | 52.4.0esr-2 |
| firefox-esr | Debian:12 | 52.4.0esr-2 |
| firefox-esr | Debian:13 | 52.4.0esr-2 |
| nss | Debian:12 | 2:3.33-1 |
| nss | Debian:14 | 2:3.33-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | thunderbird | 0 |
| Debian:13 | nss | 0 |
| Debian:14 | thunderbird | 0 |
| Debian:12 | thunderbird | 0 |
| Debian:14 | firefox-esr | 0 |
| Debian:12 | firefox-esr | 0 |
| Debian:13 | firefox-esr | 0 |
| Debian:12 | nss | 0 |
| Debian:14 | nss | 0 |
Timeline
- Jun 11, 2018 CVE Published
- Sep 1, 2026 CVE Updated
Query this with the API
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