CVE-2018-20995

描述

Affected versions of this crate did not properly update the head and tail of the deque when inserting and removing elements from the front if, before insertion or removal, the tail of the deque was in the mirrored memory region, and if, after insertion or removal, the head of the deque is exactly at the beginning of the mirrored memory region. An attacker that controls both element insertion and removal into the deque could put it in a corrupted state. Once the deque enters such an state, its head and tail are corrupted, but in bounds of the allocated memory. This can result in partial reads and writes, reads of uninitialized memory, reads of memory containing previously dropped objects, etc. An attacker could exploit this to alter program execution. The flaw was corrected by properly updating the head and tail of the deque in this case.

如何修補 CVE-2018-20995

要修補 CVE-2018-20995,請將受影響套件升級到下列已修補版本。

• —升級至 0.1.16 或更新版本
• —升級至 0.1.16 或更新版本

CVE-2018-20995 正在被利用嗎?

低 — EPSS 為 1.6%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 0.1.16
• >= 0.0.0-0, < 0.1.16

CVSS 分數

參考連結(5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2018-20995
• PATCHcrates.io/crates/slice-deque
• PATCHgithub.com/gnzlbg/slice_deque
• WEBgithub.com/gnzlbg/slice_deque/issues/57
• WEBrustsec.org/advisories/RUSTSEC-2018-0008.html