Name | CVE-2017-7805 |
Description | 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. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DLA-1118-1, DLA-1138-1, DLA-1153-1, DSA-3987-1, DSA-3998-1, DSA-4014-1 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|
firefox (PTS) | sid | 131.0.3-1 | fixed |
firefox-esr (PTS) | jessie, jessie (lts) | 68.9.0esr-1~deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 91.11.0esr-1~deb9u1 | fixed |
| buster (security), buster, buster (lts) | 115.12.0esr-1~deb10u1 | fixed |
| bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.3.1esr-1~deb11u1 | fixed |
| bookworm | 115.14.0esr-1~deb12u1 | fixed |
| bookworm (security) | 128.3.1esr-1~deb12u1 | fixed |
| sid, trixie | 128.3.1esr-2 | fixed |
nss (PTS) | jessie, jessie (lts) | 2:3.26-1+debu8u18 | fixed |
| stretch (security) | 2:3.26.2-1.1+deb9u5 | fixed |
| stretch (lts), stretch | 2:3.26.2-1.1+deb9u7 | fixed |
| buster (security), buster, buster (lts) | 2:3.42.1-1+deb10u8 | fixed |
| bullseye (security), bullseye | 2:3.61-1+deb11u3 | fixed |
| bookworm | 2:3.87.1-1 | fixed |
| sid, trixie | 2:3.105-2 | fixed |
thunderbird (PTS) | jessie, jessie (lts) | 1:68.9.0-1~deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 1:91.10.0-1~deb9u1 | fixed |
| buster (security), buster, buster (lts) | 1:115.12.0-1~deb10u1 | fixed |
| bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:115.16.0esr-1~deb11u1 | fixed |
| bookworm | 1:115.12.0-1~deb12u1 | fixed |
| bookworm (security) | 1:115.16.0esr-1~deb12u1 | fixed |
| trixie | 1:128.2.0esr-1 | fixed |
| sid | 1:128.3.2esr-1 | fixed |
The information below is based on the following data on fixed versions.